Filed Pursuant to Rule 424(b)3
                                               Registration Statement #333-66104

                               [MANUGISTICS LOGO]

                                 135,793 SHARES

                                  COMMON STOCK

                            ------------------------

     We issued 135,793 shares of our common stock, $.002 par value per share, to
OneRelease.com, Inc., a Delaware corporation, in connection with our acquisition
on May 17, 2001, of substantially all of the assets of OneRelease.com, Inc., a
Delaware corporation, and its affiliate OneRelease.com, LLC, a Delaware limited
liability company, (collectively, OneRelease). OneRelease.com, Inc. has
transferred the shares covered by this Prospectus to its stockholders. The
selling stockholders named in this Prospectus consist of persons who acquired
shares directly or indirectly from OneRelease. The selling stockholders may sell
the shares offered by them under this Prospectus directly to purchasers or
through underwriters, broker-dealers or agents, who may receive compensation in
the form of discounts, concessions or commissions.

     We will not receive any proceeds from the sale of shares offered by the
selling stockholder hereby.

     Our common stock is listed on The Nasdaq National Market under the symbol
"MANU." On October 18, 2001, the closing sale price of our common stock, as
reported on The Nasdaq National Market, was $6.94.

     INVESTING IN OUR COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. SEE "RISK
FACTORS" BEGINNING ON PAGE 5.

     The securities offered or sold under this Prospectus have not been approved
by the SEC or any state securities commission, nor have these organizations
determined that this Prospectus is accurate or complete. Any representation to
the contrary is a criminal offense.

                The date of this Prospectus is October 19, 2001


     In connection with this offering, no person is authorized to give any
information or to make any representations not contained in this Prospectus. If
information is given or representations are made, you may not rely on that
information or those representations as having been authorized by us. This
Prospectus is neither an offer to sell nor a solicitation of an offer to buy any
securities other than those registered by this Prospectus, nor is it an offer to
sell or a solicitation of an offer to buy securities where an offer or
solicitation would be unlawful. You may not imply from the delivery of this
Prospectus, nor from any sale made under this Prospectus, that our affairs are
unchanged since the date of this Prospectus or that the information contained in
this Prospectus is correct as of any time after the date of this Prospectus.

     Manugistics is a registered trademark, and the Manugistics logo and the
phrase "Leveraged Intelligence" are trademarks of Manugistics, Inc. All other
product or company names mentioned are used for identification purposes only,
and may be trademarks of their respective owners.

     Unless the context otherwise requires, the terms "we," "our," "us" or
"Manugistics" refers to Manugistics Group, Inc., a Delaware corporation.

                DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

     In addition to the historical information contained in this prospectus,
this prospectus contains forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933, as amended, and Section 21E of the
Exchange Act of 1934, as amended. Such statements are based upon current
expectations that involve risks and uncertainties. Any statements contained
herein that are not statements of historical fact may be deemed forward-looking
statements. For example, words such as "may", "will", "should", "estimates",
"predicts", "potential", "continue", "strategy", "believes", "anticipates",
"plans", "expects", "intends", and similar expressions are intended to identify
forward-looking statements. Our actual results and the timing of certain events
may differ significantly from the results discussed in the forward-looking
statement. Factors that might cause or contribute to such a discrepancy include,
but are not limited to, those discussed under the heading "Risk Factors" and the
risks discussed in our future filings under the Exchange Act of 1934, as
amended.

     You should read this prospectus completely and with the understanding that
actual future results may be materially different from what we expect. We will
not update these forward-looking statements, even though our situation may
change in the future.

                                        2


                               PROSPECTUS SUMMARY

     The following is a summary of our business. You should carefully read the
section entitled "Risk Factors" in this prospectus and our Annual Report on Form
10-K for the year ended February 28, 2001, and our Quarterly Report on Form 10-Q
for the fiscal quarter ended August 31, 2001, for more information on our
business and the risks involved in investing in our stock.

OUR BUSINESS

     We are a leading global provider of Enterprise Profit Optimization(TM)
(EPO) solutions, which we believe is a new and important category of solutions
for enterprise management. We are also a leading provider of solutions for
supply chain management (SCM), pricing and revenue optimization (PRO) and
electronic marketplaces (eMarketplaces). Our solutions help companies lower
operating costs, increase revenues, enhance profitability and accelerate revenue
and earnings growth. They do this by creating efficiencies in both how goods and
services are brought to market (supply chain management) and how they are sold
(pricing and revenue optimization). EPO solutions provide additional benefits by
combining the proven cost-reduction power of supply chain management solutions
and the revenue-enhancing capacity of pricing and revenue optimization
solutions.

     We help our clients monitor and streamline their own core internal
operational processes involving the design, purchase, manufacture, storage,
transportation, pricing, marketing and selling of their goods and services. Our
solutions also help our clients integrate their own internal processes with
those of their customers and suppliers to assist in providing collaboration and
efficiencies across extended eMarketplaces. In addition, our solutions help our
clients improve customer service and the allocation of resources by providing
information and forecasts that allow them to make more effective operational
decisions. We also provide strategic consulting and implementation services to
our clients as part of our solutions.

     Increasing global competition, shortening product life cycles and
developing eMarketplace initiatives are forcing businesses to provide improved
levels of customer service while shortening the time it takes to bring their
products and services to market. We were an early innovator in solutions that
allow collaboration among our clients and their customers and suppliers. Our
first Internet ready products were commercially available in late 1997. We focus
the development of our technology on meeting the changing needs of companies in
the markets we serve, including the need to do business in new electronic
marketplaces. We offer solutions to companies in many industries including
agriculture, apparel, automotive, chemical, consumer durables, consumer packaged
goods, electronics & high technology, energy, financial services, food &
beverage, government, logistics, metals, pharmaceuticals, pulp & paper, retail,
services and transport, travel & hospitality. Our customer base of approximately
1,100 clients includes large, multinational enterprises such as 3Com;
Amazon.com; Boeing Co.; BPAmoco Corp.; Brown & Williamson Tobacco Corp.;
Caterpillar; Cisco Systems, Inc.; Coca-Cola Bottling Co. Consolidated; ComPaq;
DuPont; eConnections; Ford Motor Company; General Electric; Harley-Davidson,
Inc.; Hormel Foods Corp.; Levi Strauss & Co.; Marriott; Nestle Texas
Instruments; Timberland; Unilever Home & Personal Care, USA and United Airlines
as well as mid-sized enterprises and emerging eMarketplaces.

     Our principal executive offices are located at 2115 East Jefferson Street,
Rockville, Maryland 20852, and our main telephone number is (301) 984-5000. We
have offices in Atlanta, Chicago, Denver, Irving, Mountain View, Pleasanton,
Philadelphia and San Mateo in the United States, and internationally in
Australia, Belgium, Brazil, Canada, France, Germany, Italy, Japan, Mexico, The
Netherlands, Singapore and the United Kingdom.

                                        3


                                  THE OFFERING


                                                 
Common Stock Offered by the Selling
  Stockholders..................................    135,793
Common Stock Outstanding........................    68,146,005 (1)
                                                    The Company will not receive any proceeds
                                                    from the sale of common stock offered
Use of Proceeds.................................    hereby.
Nasdaq Symbol...................................    MANU


---------------
(1) As of the close of business on October 18, 2001.

                                        4


                                  RISK FACTORS

     An investment in the shares of our common stock involves a high degree of
risk. Before you decide to purchase shares of our common stock, you should
carefully consider these risk factors together with all of the other information
included in this prospectus. The risks and uncertainties described below are not
the only ones facing us. Additional risks and uncertainties that we do not
presently know or that we currently deem immaterial, may also impair our
business, results of operations and financial condition.

                         RISKS RELATED TO OUR BUSINESS

AS RESULT OF RECENT SIGNIFICANT CHANGES IN OUR MANAGEMENT, PERSONNEL AND
PRODUCTS, YOU MAY HAVE DIFFICULTY EVALUATING OUR PROSPECTS BASED ON OUR
SIGNIFICANT LOSSES IN RECENT FISCAL YEARS.

     We experienced operational difficulties in fiscal 1999 and the first half
of fiscal 2000. Problems with our direct sales operation and intense
competition, among other factors, contributed to net losses in fiscal 1999 and
fiscal 2000 and a decline in revenue in fiscal 2000. Since April 1999, we hired
a new executive management team, enhanced our supply chain optimization and
eMarketplace products and services, expanded the scope of our product and
service offerings to include pricing and revenue optimization and improved our
direct sales organization. Our ability to continue to achieve operational
improvements and improve our financial performance will be subject to a number
of risks and uncertainties, including the following:

     - weakening economic conditions which adversely impacted our operating
      performance during the quarter ended August 31, 2001;

     - slower growth in the market for supply chain management, pricing/revenue
      optimization and eMarketplace solutions;

     - our ability to introduce new software products and services to respond to
      technological and client needs;

     - our ability to manage through difficult economic and political
      environments;

     - our ability to hire, integrate and deploy our direct sales force
      effectively;

     - our ability to expand our distribution capability through indirect sales
      channels;

     - our ability to respond to competitive developments and pricing; and

     - our dependence on our current executive officers and key employees.

     If we fail to successfully address these risks and uncertainties, our
business could be harmed and we could continue to incur significant losses.

THE TERRORIST ATTACKS THAT TOOK PLACE IN THE UNITED STATES ON SEPTEMBER 11,
2001, ARE AN UNPRECEDENTED EVENT THAT HAVE CREATED MANY ECONOMIC AND POLITICAL
UNCERTAINTIES, SOME OF WHICH MAY HARM OUR BUSINESS AND PROSPECTS AND OUR ABILITY
IN GENERAL TO CONDUCT BUSINESS IN THE ORDINARY COURSE.

     The terrorist attacks that took place in the United States on September 11,
2001, have adversely impacted many businesses, including the Company, in
multiple ways. The national and global responses to these terrorist attacks,
many of which are still being formulated, may materially adversely affect us in
ways we cannot predict at present. Some of the possible material adverse impacts
to our business include, but are not limited to:

     - the lengthening of our sales cycles and implementations, which might
      result from a number of factors, such as changes in security measures for
      passenger air travel and reductions in
                                        5


available commercial flights which may make it more difficult for our sales
force to schedule face-to-face meetings with prospects and to negotiate and
consummate transactions;

     - increased credit and business risk for customers in industries that were
       severely impacted by the attacks, most notably passenger airlines and
       other travel and hospitality industries; and

     - possible reductions, delays or postponements, if any, in U.S. government
       spending on supply chain software and solutions as a result of changes in
       fiscal funding priorities.

WE HAVE EXPERIENCED SIGNIFICANT LOSSES IN RECENT FISCAL YEARS. OUR FUTURE
RESULTS WILL BE ADVERSELY AFFECTED BY SEVERAL TYPES OF NON-CASH CHARGES. IF WE
DO NOT ACHIEVE OR MAINTAIN PROFITABILITY IN THE FUTURE, OUR STOCK PRICE MAY
DECLINE.

     We have recently incurred significant losses, including net losses of $45.1
million for the six months ended August 31, 2001, $28.1 million in fiscal 2001,
and $8.9 million in fiscal 2000 and $96.1 million in fiscal 1999. We will incur
non-cash charges in the future related to the amortization of intangible assets,
including acquired technology, and non-cash stock compensation expenses
associated with our acquisition of Talus Solutions, Inc. (Talus). We will also
incur non-cash charges related to the acquisition of STG Holdings, Inc., the
acquisition of substantially all of the assets of OneRelease, the acquisition of
certain assets of PartMiner CSD, Inc., as well as related assets from its
parent, PartMiner, Inc. and its affiliates, and the acquisition of the
intellectual property and certain other assets of SpaceWorks, Inc. In addition,
we have incurred and may in the future incur non-cash stock compensation charges
related to our stock option repricing. We may also incur non-cash charges in
future periods related to impairments of long-lived assets. We cannot assure you
that our revenue will grow or that we will achieve profitability in the future.
Our ability to increase revenue and achieve profitability will be affected by
the other risks and uncertainties described in this section. Our failure to
achieve profitability could cause our stock price to decline, and our ability to
finance our operations could be impaired.

OUR OPERATING RESULTS FLUCTUATE, AND IF WE FAIL TO MEET THE EXPECTATIONS OF THE
INVESTMENT COMMUNITY IN ANY PERIOD, OUR STOCK PRICE COULD SUFFER FURTHER
SIGNIFICANT DECLINES.

     Our revenue and operating results are difficult to predict, and we believe
that period-to-period comparisons of our operating results will not necessarily
be indicative of future performance. The factors that may cause fluctuations of
our quarterly operating results include the following:

     - the size, timing and contractual terms of licenses and sales of our
       products and services;

     - customer financial constraints and credit-worthiness;

     - the potentially long and unpredictable sales cycle for our products;

     - technical difficulties in our software that could delay the introduction
       of new products or increase their costs;

     - introductions of new products or new versions of existing products by us
       or our competitors;

     - delay or deferral of customer purchases and implementations of our
       solutions due to weakening economic conditions which adversely impacted
       our operating performance during the quarter ended August 31, 2001;

     - economic uncertainty and political instability following the terrorist
       attacks in the United States on September 11, 2001;

     - changes in prices or the pricing models for our products and services or
       those of our competitors;

                                        6


     - changes in the mix of our software, services and support revenue;

     - changes in the mix of sales channels through which our products and
       services are sold; and

     - changes in rules relating to revenue recognition or in interpretations of
       those rules.

     Due to fluctuations from quarter to quarter, our operating results may not
meet the expectations of securities analysts or investors, as was the case for
the quarter ended August 31, 2001. If this occurs, the price of our common stock
could suffer further significant declines.

VARIATIONS IN THE TIME IT TAKES US TO LICENSE OUR SOFTWARE MAY CAUSE
FLUCTUATIONS IN OUR OPERATING RESULTS.

     The time it takes to license our software to prospective clients varies
substantially, but typically ranges between four and twelve months. Variations
in the length of our sales cycles could cause our revenue to fluctuate widely
from period to period. Because we typically recognize a substantial portion of
our software revenue in the last month of a quarter, any delay in the license of
our products could cause significant variations in our revenue from quarter to
quarter. These delays have occurred on a number of occasions in the past,
including, most recently, in our quarter ended August 31, 2001. Furthermore,
these fluctuations could cause our operating results to suffer in some future
periods because our operating expenses are relatively fixed over the short term
and we devote significant time and resources to prospective clients. The length
of our sales cycle depends on a number of factors, including the following:

     - the complexities of the supply chain, pricing/revenue and eMarketplace
       problems our solutions address;

     - the breadth of the solution required by the client, including the
       technical, organizational and geographic scope of the license;

     - the evaluation and approval process employed by the client;

     - the sales channel through which the solution is sold;

     - the economic conditions in the U.S. and abroad;

     - economic uncertainty and political instability following the terrorist
       attacks in the United States on September 11, 2001; and

     - any other delays arising from factors beyond our control.

THE SIZE AND SCOPE OF OUR CONTRACTS WITH CLIENTS ARE INCREASING, WHICH MAY CAUSE
FLUCTUATIONS IN OUR OPERATING RESULTS.

     Our clients and prospective clients are seeking to solve increasingly
complex supply chain, pricing/revenue and eMarketplace problems. Further, we are
focused on providing more comprehensive solutions for our clients, as opposed to
only licensing software. As the complexity of the problems our clients seek to
solve increases, the size and scope of our contracts with clients increase. As a
result, our operating results could fluctuate due to the following factors:

     - the complexities of the contracting process of our clients;

     - contractual terms may vary widely, which may result in differing methods
       of accounting for revenue from each contract;

     - losses of, or delays in concluding larger contracts could have a
       proportionately greater effect on our revenue for a particular period;
       and

     - the sales cycles related to larger contracts may be longer and subject to
       greater delays.

                                        7


     Any of these factors could cause our revenue to decline or fluctuate
significantly in any quarter and could cause a decline in our stock price.

WE HAVE EXPERIENCED DIFFICULTIES INTEGRATING ACQUISITIONS IN THE PAST AND MAY
EXPERIENCE PROBLEMS WITH FUTURE ACQUISITIONS THAT COULD MATERIALLY HARM OUR
BUSINESS.

     Acquisitions involve the integration of companies that have previously
operated independently. In connection with any acquisition, there can be no
assurance that we will:

     - effectively integrate employees, operations, products and systems;

     - realize the expected benefits of the transaction;

     - retain key employees;

     - effectively develop and protect key technologies and proprietary
       know-how;

     - avoid conflicts with our clients and business partners that have
       commercial relationships or compete with the acquired company;

     - avoid unanticipated operational difficulties or expenditures or both; and

     - effectively operate our existing business lines, given the significant
       diversion of resources and management attention required to successfully
       integrate acquisitions, including the acquisition of Talus in December
       2000.

     We experienced significant difficulties with the integration of the
products and operations of ProMIRA Software, Inc. (ProMIRA) and TYECIN Systems,
Inc. (TYECIN), which we acquired in fiscal 1998 and 1999, respectively. These
difficulties included problems integrating the prior ProMIRA sales forces and
the delayed releases of the in-process technology acquired as part of the
transaction. In addition, as a result of the poor financial performance we
experienced in fiscal 1999, the technology acquired in conjunction with the
TYECIN acquisition was not integrated into our solutions and, therefore, revenue
generated from this technology have been nominal. Similar difficulties with
future acquisitions could materially and adversely affect our business, results
of operations and financial condition.

WE MAY ENCOUNTER PROBLEMS EFFECTIVELY INTEGRATING TALUS.

     On December 21, 2000, we completed the acquisition of Talus, a
privately-held company that provided pricing and revenue optimization products
and services. This acquisition is substantially larger than all of our prior
acquisitions, not all of which have been successful. In addition to the risks
described above in connection with acquisitions generally, the ultimate success
of our acquisition of Talus is dependent on factors which include the following:

     - our ability to complete future releases of our pricing and revenue
       optimization solutions;

     - our ability to protect and maintain Talus' intellectual property rights;

     - our ability to successfully integrate Talus' technologies;

     - our ability to retain and motivate Talus' employees;

     - market acceptance of the products Talus has commercially developed to
       date;

     - our ability to fulfill our strategic plan for the acquisition of Talus by
       integrating our supply chain and eMarketplace capabilities and products
       with Talus' pricing and revenue optimization products;

     - market acceptance of EPO solutions;

     - our ability, together with Talus, to cross-sell products and services
       into our respective markets; and
                                        8


     - the outcome of disputes and litigation which have arisen in the ordinary
       course of business.

OUR ACQUISITION OF TALUS WILL ADVERSELY AFFECT OUR COMBINED FINANCIAL RESULTS.

     We have incurred and will continue to incur substantial dilution to our
earnings per share in accordance with generally accepted accounting principles
for the foreseeable future as a result of the acquisition of Talus. In
connection with the acquisition, we will amortize approximately $22.8 million of
deferred compensation related to unvested stock options over four years.
Further, we expect to incur an amortization charge of approximately $82 million
related to goodwill and other intangible assets during our fiscal year ending
February 28, 2002.

WE DEPEND ON SALES OF OUR SUPPLY CHAIN MANAGEMENT, PRICING/REVENUE OPTIMIZATION
AND EMARKETPLACE SOLUTIONS, AND OUR BUSINESS WILL BE MATERIALLY AND ADVERSELY
AFFECTED IF THE MARKET FOR OUR PRODUCTS DOES NOT CONTINUE TO GROW.

     Substantially all of our software revenue, service revenue and support
revenue have arisen from, or are related directly to, our supply chain
management, pricing/revenue optimization and eMarketplace solutions. We expect
to continue to be dependent upon these solutions in the future, and any factor
adversely affecting the solutions or the markets for supply chain management,
pricing/revenue optimization and eMarketplace solutions, in general, would
materially and adversely affect our ability to generate revenue. While we
believe the markets for supply chain management, pricing/revenue optimization
and eMarketplace solutions will continue to expand, they may grow more slowly
than in the past. If the markets for our solutions do not grow as rapidly as we
expect, revenue growth, operating margins, or both, could be adversely affected.

OUR MARKETS ARE VERY COMPETITIVE, AND WE MAY NOT BE ABLE TO EFFECTIVELY COMPETE.

     The markets for our solutions are very competitive. The intensity of
competition in our markets has significantly increased, and we expect it to
increase in the future. Our current and potential competitors may make
acquisitions of other competitors and may establish cooperative relationships
among themselves or with third parties. Further, our current or prospective
clients and partners may become competitors in the future. Increased competition
could result in price reductions, lower gross margins, longer sales cycles and
the loss of market share. Each of these developments could materially and
adversely affect our growth and operating performance.

MANY OF OUR CURRENT AND POTENTIAL COMPETITORS HAVE SIGNIFICANTLY MORE RESOURCES
THAN WE DO AND, THEREFORE, WE MAY BE AT A DISADVANTAGE IN COMPETING WITH THEM.

     We directly compete with other application software vendors including:
Adexa, Inc., Aspen Technology, Inc., The Descartes Systems Group Inc., i2
Technologies, Inc., Logility, Inc., PROS Revenue Management, Retek, Inc., Sabre,
Inc., SAP AG, SynQuest and YieldStar Technology. Some eMarketplace software
companies that do not currently offer directly competitive products or
solutions, such as Ariba, Inc. and Commerce One, may begin to compete directly
with us. In addition, some ERP companies such as Invensys plc (which acquired
Baan Company N.V.), J.D. Edwards & Company, Oracle Corporation and PeopleSoft,
Inc. have acquired or developed and are developing supply chain planning,
pricing/revenue optimization or eMarketplace solutions. Some of our current and
potential competitors, particularly the ERP vendors, have significantly greater
financial, marketing, technical and other competitive resources than us, as well
as greater name recognition and a larger installed base of clients. In addition,
many of our competitors have well-established relationships with our current and
potential clients and have extensive knowledge of our industry. As a result,
they may be able to adapt more quickly to new or emerging technologies and
changes in client requirements or to devote greater resources to the
development, promotion and sale of their products than we can. Any of these
factors could materially impair our ability to compete and adversely affect our
revenue growth and operating performance.

                                        9


IF THE DEVELOPMENT OF OUR PRODUCTS AND SERVICES FAILS TO KEEP PACE WITH OUR
INDUSTRY'S RAPIDLY EVOLVING TECHNOLOGY, OUR FUTURE RESULTS MAY BE MATERIALLY AND
ADVERSELY AFFECTED.

     The markets for supply chain management, pricing/revenue optimization and
eMarketplace solutions are subject to rapid technological change, changing
client needs, frequent new product introductions and evolving industry standards
that may render existing products and services obsolete. Our growth and future
operating results will depend, in part, upon our ability to enhance existing
applications and develop and introduce new applications or capabilities that:

     - meet or exceed technological advances in the marketplace;

     - meet changing client requirements;

     - comply with changing industry standards;

     - achieve market acceptance;

     - integrate third-party software effectively; and

     - respond to competitive offerings.

     Our product development and testing efforts have required, and are expected
to continue to require, substantial investments. We may not possess sufficient
resources to continue to make the necessary investments in technology. In
addition, we may not successfully identify new software opportunities or develop
and bring new software to market in a timely and efficient manner. If we are
unable, for technological or other reasons, to develop and introduce new and
enhanced software in a timely manner, we may lose existing clients and fail to
attract new clients, which may adversely affect our performance.

DEFECTS IN OUR SOFTWARE OR PROBLEMS IN THE IMPLEMENTATION OF OUR SOFTWARE COULD
LEAD TO CLAIMS FOR DAMAGES BY OUR CLIENTS, LOSS OF REVENUE OR DELAYS IN THE
MARKET ACCEPTANCE OF OUR SOLUTIONS.

     Our software is complex and is frequently integrated with a wide variety of
third-party software. We may license software that contains undetected errors or
failures when new software is first introduced or as new versions are released.
We may not be able to discover errors in our software until our customers
install and use a given product or until the volume of services that a product
provides increases. These problems may result in claims for damages suffered by
our clients, a loss of, or delays in, the market acceptance of our solutions,
client dissatisfaction and potentially lost revenue during the period required
to correct these errors.

WE ARE DEPENDENT ON THIRD-PARTY SOFTWARE THAT WE INCORPORATE INTO AND INCLUDE
WITH OUR PRODUCTS AND SOLUTIONS AND IMPAIRED RELATIONS WITH THESE THIRD PARTIES,
DEFECTS IN THIRD-PARTY SOFTWARE OR THE INABILITY TO ENHANCE THEIR SOFTWARE OVER
TIME COULD HARM OUR BUSINESS.

     We incorporate and include third-party software into and with our products
and solutions. We are likely to incorporate and include additional third-party
software into and with our products and solutions as we expand our product
offerings. The operation of our products would be impaired if errors occur in
the third-party software that we utilize. It may be more difficult for us to
correct any defects in third-party software because the software is not within
our control. Accordingly, our business could be adversely affected in the event
of any errors in this software. There can be no assurance that these third
parties will continue to invest the appropriate levels of resources in their
products and services to maintain and enhance the software capabilities.

     Furthermore, it may be difficult for us to replace any third-party software
if a vendor seeks to terminate our license to the software or ability to license
the software to others. Any impairment in our relationship with these third
parties could adversely impact our business, results of operations and financial
condition.

                                        10


WE ARE SUBSTANTIALLY DEPENDENT ON THIRD PARTIES TO INTEGRATE OUR SOFTWARE WITH
OTHER SOFTWARE PRODUCTS AND PLATFORMS.

     We depend on companies such as Peregrine Systems, Inc.; Vignette
Corporation; and webMethods, Inc. to integrate our software with software and
platforms developed by third parties. If these companies are unable to develop
or maintain software that effectively integrates our software and is free from
errors, our ability to license our products and provide solutions could be
impaired. Further, we rely on these companies to maintain relationships with the
companies that provide the external software that is vital to the functioning of
our products and solutions. The loss of any company that we use to integrate our
software products could adversely affect our business, results of operations and
financial condition.

OUR EFFORTS TO DEVELOP RELATIONSHIPS WITH VENDORS SUCH AS SOFTWARE COMPANIES,
CONSULTING FIRMS, RESELLERS AND OTHERS TO IMPLEMENT AND PROMOTE OUR SOFTWARE
PRODUCTS MAY FAIL.

     We are developing, maintaining and enhancing significant working
relationships with complementary vendors, such as software companies, consulting
firms, resellers and others, that we believe can play important roles in
marketing our products and solutions. We are currently investing, and intend to
continue to invest significant resources to develop and enhance these
relationships, which could adversely affect our operating margins. We may be
unable to develop relationships with organizations that will be able to market
our products effectively. Our arrangements with these organizations are not
exclusive and, in many cases, may be terminated by either party without cause.
Many of the organizations with which we are developing or maintaining marketing
relationships have commercial relationships with our competitors. Therefore,
there can be no assurance that any organization will continue its involvement
with us and our products. The loss of relationships with important organizations
could materially and adversely affect our business, results of operations and
financial condition.

WE HAVE ONLY RECENTLY ENTERED INTO CONTRACTS WITH GOVERNMENTAL AGENCIES. THESE
CONTRACTS OFTEN INVOLVE LONG PURCHASE CYCLES AND COMPETITIVE PROCUREMENT
PROCESSES.

     We have recently begun providing our solutions to government agencies and
expect that a significant portion of our future revenue may be derived from
government agency clients. Obtaining government contracts may involve long
purchase cycles, competitive bidding, qualification requirements, performance
bond requirements, delays in funding, budgetary constraints and extensive
specification development and price negotiations. In order to facilitate doing
business with the federal government, we have submitted a schedule of prices for
our products and services to the General Services Administration. We are
permitted to update our schedule of prices only on an annual basis. Each
government agency maintains its own rules and regulations with which we must
comply and which can vary significantly among agencies. Government agencies also
often retain a significant portion of fees payable upon completion of a project
and collection of such fees may be delayed for several months. Accordingly, our
revenue could decline as a result of these government procurement processes. In
addition, it is possible that, in the future, some of our government contracts
may be fixed price contracts which may prevent us from recovering costs incurred
in excess of our budgeted costs. Fixed price contracts may require us to
estimate the total project cost based on preliminary projections of the
project's requirements. The financial viability of any given project depends in
large part on our ability to estimate such costs accurately and complete the
project on a timely basis. In the event our actual costs exceed the fixed
contract cost, we will not be able to recover the excess costs. If we fail to
properly anticipate costs on fixed price contracts, our profit margins will
decrease. Some government contracts are also subject to termination or
renegotiation at the convenience of the government, which could result in a
large decline in revenue in any given quarter. Multi-year contracts are
contingent on overall budget approval by Congress and may be terminated due to
lack of funds.

                                        11


INCREASED SALES THROUGH INDIRECT CHANNELS MAY ADVERSELY AFFECT OUR OPERATING
PERFORMANCE.

     Even if our marketing efforts through indirect channels are successful and
result in increased sales, our average selling prices and operating margins
could be adversely affected because of the lower unit prices that we receive
when selling through indirect channels.

IF WE FAIL TO FIELD AN EFFECTIVE SALES ORGANIZATION, OUR ABILITY TO GROW WILL BE
LIMITED.

     We have recently reduced our sales force as a result of weakening economic
conditions. In order to grow our revenue, our existing sales force will have to
be more productive and we will have to expand our sales force in future periods.
Our past efforts to expand our sales organization have required significant
resources. New sales personnel will require training and may take a long time to
achieve full productivity. There is no assurance that we can attract and retain
qualified sales people at levels sufficient to support our growth. Any failure
to adequately sell and support our products could limit our growth and adversely
affect our financial performance.

THE LIMITED ABILITY OF LEGAL PROTECTIONS TO SAFEGUARD OUR INTELLECTUAL PROPERTY
RIGHTS COULD IMPAIR OUR ABILITY TO COMPETE EFFECTIVELY.

     Our success and ability to compete are substantially dependent on our
internally developed technologies and trademarks, which we protect through a
combination of confidentiality procedures, contractual provisions, patent,
copyright, trademark and trade secret laws. Despite our efforts to protect our
proprietary rights, unauthorized parties may copy aspects of our products or
obtain and use information that we regard as proprietary. Policing unauthorized
use of our products is difficult and, although we are unable to determine the
extent to which piracy of our software products exists, we expect software
piracy to be a problem. In addition, the laws of some foreign countries do not
protect our proprietary rights to the same extent as the laws of the United
States. Furthermore, our competitors may independently develop technology
similar to ours.

OUR PRODUCTS MAY INFRINGE UPON THE INTELLECTUAL PROPERTY RIGHTS OF OTHERS, WHICH
MAY CAUSE US TO INCUR UNEXPECTED COSTS OR PREVENT US FROM SELLING OUR PRODUCTS.

     The number of intellectual property claims in our industry may increase as
the number of competing products grows and the functionality of products in
different industry segments overlaps. In recent years, there has been a tendency
by software companies to file substantially increasing numbers of patent
applications, including those for business methods and processes. We have no way
of knowing what patent applications third parties have filed until the
application is filed or until a patent is issued. Patent applications are often
published within 18 months of filing but it can take as long as three years or
more for a patent to be granted after an application has been filed. Although we
are not aware that any of our products infringe upon the proprietary rights of
third parties, there can be no assurance that third parties will not claim
infringement by us with respect to current or future products. Any of these
claims, with or without merit, could be time-consuming to address, result in
costly litigation, cause product shipment delays or require us to enter into
royalty or license agreements. These royalty or license agreements might not be
available on terms acceptable to us or at all, which could materially and
adversely affect our business.

OUR INTERNATIONAL OPERATIONS POSE RISKS FOR OUR BUSINESS AND FINANCIAL
CONDITION.

     We currently conduct operations in a number of countries around the world.
These operations require significant management attention and financial
resources and subject us to risks inherent in doing business internationally,
such as:

     - regulatory requirements;

     - difficulties in staffing and managing foreign operations;

                                        12


     - longer collection cycles;

     - foreign currency risk;

     - legal uncertainties regarding liability, ownership and protection of
      intellectual property;

     - tariffs and other trade barriers;

     - seasonal reductions in business activities;

     - potentially adverse tax consequences; and

     - economic and political instability following the terrorists attacks in
      the United States on September 11, 2001.

     Any of the above factors could adversely affect the success of our
international operations. One or more of these factors could have a material
adverse effect on our business and operating results.

IF WE LOSE OUR KEY PERSONNEL, THE SUCCESS AND GROWTH OF OUR BUSINESS MAY SUFFER.

     Our success depends significantly on the continued service of our executive
officers. We do not have fixed-term employment agreements with any of our
executive officers, and we do not maintain key person life insurance on our
executive officers. The loss of services of any of our officers for any reason
could have a material adverse effect on our business, operating results,
financial condition and cash flows.

THE FAILURE TO HIRE AND RETAIN QUALIFIED PERSONNEL WOULD HARM OUR BUSINESS.

     We believe that our success also will depend significantly on our ability
to attract, integrate, motivate and retain additional highly skilled technical,
managerial, sales, marketing and services personnel. Competition for skilled
personnel is intense, and there can be no assurance that we will be successful
in attracting, motivating and retaining the personnel required to grow and
operate profitably. In addition, the cost of hiring and retaining skilled
employees is high, and this reduces our profitability. Failure to attract and
retain highly skilled personnel could materially and adversely affect our
business. An important component of our employee compensation is stock options.
A decline in our stock price could adversely affect our ability to attract and
retain employees, as it has in the past.

WE HAVE RECENTLY EXPERIENCED SIGNIFICANT CHANGES IN OUR SENIOR MANAGEMENT TEAM
AND THERE IS NO ASSURANCE THE TEAM WILL WORK TOGETHER EFFECTIVELY.

     Commencing in the first quarter of fiscal 2000, we have completely changed
our senior management team. Gregory J. Owens, our Chief Executive Officer,
joined us in April 1999. With one exception, all of our other present executive
officers joined us after Mr. Owens. Our success depends on the ability of our
management team to work together effectively. Our business, revenue and
financial condition will be materially and adversely affected if our senior
management team does not manage our company effectively or if we are unable to
retain our senior management.

EXPENSES ARISING FROM OUR STOCK OPTION REPRICING MAY HAVE A MATERIAL ADVERSE
IMPACT ON FUTURE PERFORMANCE.

     In response to the poor performance of our stock price between May 1998 and
January 1999, we offered to reprice employee stock options, other than those
held by our executive officers or directors, effective January 29, 1999, to
bolster employee retention. The effect of this repricing resulted in options to
acquire approximately 3.0 million shares being repriced and the four-year
vesting period starting over. The recently adopted FASB Interpretation No. 44 of
Accounting

                                        13


Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees,"
requires us to record compensation expense or benefit associated with the change
in the market price of these options. The changes in our common stock market
price since the FASB-mandated measurement date of July 1, 2000 resulted in a
non-cash stock benefit of $12.6 million and $8.0 million during the three and
six-month periods ended August 31, 2001 and an expense of $11.1 million being
recorded for the year ended February 28, 2001. In each future quarter, we will
record the additional expense or benefit related to the repriced stock options
still outstanding, to the extent that our stock price is greater than $22.19,
based on the change in our common stock price as compared to the measurement
date. As a result, the repricing may continue to have a material adverse impact
on reported financial results and could therefore negatively affect our stock
price.

WE MAY BE SUBJECT TO FUTURE LIABILITY CLAIMS, AND OUR COMPANY AND PRODUCTS'
REPUTATION MAY SUFFER.

     Many of our implementations involve projects that are critical to the
operations of our clients' businesses and provide benefits that may be difficult
to quantify. Any failure in a client's system could result in a claim for
substantial damages against us, regardless of our responsibility for the
failure. We have entered into and plan to continue to enter into agreements with
software vendors, consulting firms, resellers and others whereby they market our
solutions. If these vendors fail to meet their clients' expectations or cause
failures in their clients' systems, the reputation of our company and products
could be materially and adversely affected even if our software products perform
in accordance with their functional specifications.

                         RISKS RELATED TO OUR INDUSTRY

LACK OF GROWTH OR DECLINE IN INTERNET USAGE OR ELECTRONIC MARKETPLACES COULD BE
DETRIMENTAL TO OUR FUTURE OPERATING RESULTS.

     The growth of the Internet has increased demand for supply chain
management, pricing/revenue optimization and eMarketplace solutions, as well as
created markets for new and enhanced product offerings. Therefore, our future
sales and profits are substantially dependent upon the Internet as a viable
medium for electronic marketplaces. The Internet may not succeed in becoming a
viable marketplace for a number of reasons, including:

     - potentially inadequate development of network infrastructure or delayed
      development of enabling technologies and performance improvements;

     - delays in the development or adoption of new standards and protocols
      required to handle increased levels of Internet activity;

     - concerns that may develop among businesses and consumers about
      accessibility, security, reliability, cost, ease of use and quality of
      service;

     - increased taxation and governmental regulation; or

     - changes in, or insufficient availability of, communications services to
      support the Internet, resulting in slower Internet user response times.

     The occurrence of any of these factors could require us to modify our
technology and our business strategy. Any such modifications could require us to
expend significant amounts of resources. In the event that the Internet does not
become and remain a viable commercial marketplace, our business, financial
condition and results of operations could be materially and adversely affected.

                                        14


NEW LAWS OR REGULATIONS AFFECTING THE INTERNET, ELECTRONIC MARKETPLACES OR
COMMERCE IN GENERAL COULD REDUCE OUR REVENUE AND ADVERSELY AFFECT OUR GROWTH.

     Congress and other domestic and foreign governmental authorities have
adopted and are considering legislation affecting the use of the Internet,
including laws relating to the use of the Internet for commerce and
distribution. The adoption or interpretation of laws regulating the Internet, or
of existing laws governing such things as consumer protection, libel, property
rights and personal privacy, could hamper the growth of the Internet and its use
as a communications and commercial medium. If this occurs, companies may decide
not to use our products or services, and our business, operating results and
financial condition could suffer.

THE VIABILITY OF ELECTRONIC MARKETPLACES IS UNCERTAIN.

     Electronic marketplaces that allow collaboration over the Internet among
trading partners are relatively new and unproven. There can be no assurance that
trading partners will adopt electronic marketplaces as a method of doing
business. Trading partners may fail to participate in electronic marketplaces
for a variety of reasons, including:

     - concerns about the confidentiality of information provided electronically
      to electronic marketplaces;

     - the inability of technological advances to keep pace with the volume of
      information processed by electronic marketplaces; and

     - regulatory issues, including antitrust issues that may arise when trading
      partners collaborate through electronic marketplaces.

     Any of these factors could limit the growth of electronic marketplaces as
an accepted means of commerce. Slower growth or the abandonment of the
electronic marketplace concept in one or more industries could have a material
adverse affect on our results of operations and financial condition.

                           RISKS RELATED TO THE NOTES

OUR INDEBTEDNESS COULD ADVERSELY AFFECT OUR FINANCIAL CONDITION.

     In November 2000, we completed a convertible debt offering of $250.0
million in 5% subordinated convertible notes that are due November 2007. Our
indebtedness could have important consequences for investors. For example, it
could:

     - increase our vulnerability to general adverse economic and industry
      conditions;

     - limit our ability to obtain additional financing;

     - require the dedication of a substantial portion of our cash flows from
      operations to the payment of principal of, and interest on, our
      indebtedness, thereby reducing the availability of capital to fund our
      growth strategy, working capital, capital expenditures, acquisitions and
      other general corporate purposes;

     - limit our flexibility in planning for, or reacting to, changes in our
      business and the industry; and

     - place us at a competitive disadvantage relative to our competitors with
      less debt.

     Although we have no present plans to do so, we may incur substantial
additional debt in the future. Neither the terms of our credit facility nor the
terms of these Notes fully prohibit us from doing so. If a significant amount of
new debt is added to our current levels, the related risks described above could
intensify.

                                        15


WE MAY HAVE INSUFFICIENT CASH FLOW TO MEET OUR DEBT SERVICE OBLIGATIONS.

     We will be required to generate cash sufficient to pay all amounts due on
the Notes and to conduct our business operations. We have net losses, and we may
not be able to cover our anticipated debt service obligations. This may
materially hinder our ability to make principal and interest payments on the
Notes. Our ability to meet our future debt service obligations will be dependent
upon our future performance, which will be subject to financial, business and
other factors affecting our operations, many of which are beyond our control.

                 RISKS RELATED TO THE SALE OF OUR COMMON STOCK

SCHEDULED SALES OF SIGNIFICANT AMOUNTS OF OUR COMMON STOCK BY OUR EXECUTIVE
OFFICERS MAY CAUSE OUR STOCK PRICE TO DECLINE.

     Certain of our executive officers have entered into pre-established trading
plans pursuant to which they sold a total of approximately 515,000 shares of our
common stock in January 2001 and approximately 253,000 shares in April 2001 and
approximately 318,000 shares in the three months ended August 31, 2001. Gregory
Owens, our Chairman and Chief Executive Officer, has recently terminated his
trading plan. Our other executive officers who have established trading plans
are scheduled to sell up to approximately 100,000 shares per quarter after each
of the second and third quarters of fiscal 2002, subject to the terms of their
trading plans. Based on the market price of our stock during September 2001 and
the first two weeks of October, 2001, no shares would be sold under these
trading plans. The quarterly sales will continue until the trading plans are
modified or terminated. Certain of our other executive officers and directors
may establish similar plans to sell shares on a quarterly basis. The sale of
these shares may cause the market price of our stock to decline.

OUR CHARTER AND BYLAWS AND DELAWARE LAW CONTAIN PROVISIONS THAT COULD DISCOURAGE
A TAKEOVER EVEN IF BENEFICIAL TO STOCKHOLDERS.

     Our charter and our bylaws, in conjunction with Delaware law, contain
provisions that could make it more difficult for a third party to obtain control
of us even if doing so would be beneficial to stockholders. For example, our
bylaws provide for a classified board of directors and allow our board of
directors to expand its size and fill any vacancies without stockholder
approval. Furthermore, our board has the authority to issue preferred stock and
to designate the voting rights, dividend rate and privileges of the preferred
stock all of which may be greater than the rights of common stockholders.

OUR STOCK PRICE HAS BEEN AND IS LIKELY TO CONTINUE TO BE VOLATILE.

     The trading price of our common stock has been and is likely to be highly
volatile. Our stock price could be subject to wide fluctuations in response to a
variety of factors, including the following:

     - actual or anticipated variations in quarterly operating results;

     - weakening economic conditions;

     - economic and political uncertainty following the terrorist attacks in the
      United States on September 11, 2001;

     - announcements of technological innovations;

     - new products or services offered by us or our competitors;

     - changes in financial estimates by securities analysts;

     - conditions or trends in the market for EPO, SCM, PRO and eMarketplace
      solutions;
                                        16


     - changes in the performance and/or market valuations of our current and
      potential competitors and the software industry in general;

     - our announcement of significant acquisitions, strategic partnerships,
      joint ventures or capital commitments;

     - adoption of industry standards and the inclusion of our technology in, or
      compatibility of our technology with, such standards;

     - adverse or unfavorable publicity regarding us or our products;

     - adverse or unfavorable publicity regarding our competitors, including
      their products and implementation efforts;

     - additions or departures of key personnel;

     - our sales of additional equity securities; and

     - other events or factors that may be beyond our control.

     In addition, the stock markets in general, The NASDAQ National Market and
the equity markets for software companies in particular, have recently
experienced extraordinary price and volume volatility and a significant
cumulative decline in recent months. Such volatility and decline have adversely
affected the stock prices for many companies irrespective of or
disproportionately to the operating performance of these companies. These broad
market and industry factors may materially and adversely further affect the
market price of our common stock, regardless of our actual operating
performance.

                                USE OF PROCEEDS

     We will not receive any proceeds from the sale of the common stock offered
hereby. The selling stockholder will receive all of the net proceeds from the
sale of the common stock which it owns.

                                        17


                          PRICE RANGE OF COMMON STOCK

     Our common stock trades on The Nasdaq National Market under the symbol
"MANU." The following table sets forth, for the periods indicated, the high and
low sales prices per share for our common stock, as reported on The Nasdaq
National Market for the periods indicated.



                                                               HIGH     LOW
                                                              ------   ------
                                                                 
FISCAL YEAR 2000
  First Quarter.............................................  $ 5.63   $ 2.63
  Second Quarter............................................    8.00     4.34
  Third Quarter.............................................    8.94     4.53
  Fourth Quarter............................................   29.06     8.50
FISCAL YEAR 2001
  First Quarter.............................................  $35.13   $12.53
  Second Quarter............................................   46.66    11.25
  Third Quarter.............................................   66.06    30.88
  Fourth Quarter............................................   64.38    26.94
FISCAL YEAR 2002
  First Quarter.............................................  $41.90   $15.38
  Second Quarter............................................   42.38    11.65
  Third Quarter (September 1, 2001 through October 18,
     2001)..................................................   12.26     4.94


     On October 18, 2001, the last reported sale price of our common stock as
reported on The Nasdaq National Market was $6.94 per share. On October 18, 2001,
there were approximately 345 holders of record of our common stock.

                                DIVIDEND POLICY

     We have never paid any cash dividends on our capital stock. We currently
anticipate that we will retain earnings to support our operations and to finance
the growth and development of our business, and we do not anticipate paying any
cash dividends for the foreseeable future. Under the terms of our unsecured
committed revolving credit facility with a commercial bank, we are prohibited
from declaring or paying cash dividends on our common stock. (The facility is
scheduled to expire on October 31, 2001.)

                              SELLING STOCKHOLDERS

     This Prospectus is to be used in connection with the sale by the selling
stockholders of a total of up to 135,793 shares of common stock. We issued the
shares to be sold pursuant to this Prospectus to OneRelease.com, Inc. in
connection with our acquisition on May 17, 2001, of substantially all of the
assets of OneRelease. We issued these shares in transactions exempt from the
registration requirements of the Securities Act pursuant to Section 4(2) of the
Securities Act.

     The following table sets forth certain information regarding the beneficial
ownership of shares of common stock by the selling stockholders as of September
30, 2001; each of the selling stockholders owned less than one percent of the
shares of our common stock then outstanding. The shares being offered by this
Prospectus constitute all of the shares of common stock which we issued to
OneRelease.com, Inc. in connection with the acquisition of substantially all of
the assets of OneRelease. The selling stockholders own only those shares of
common stock. It is assumed that all of the shares being offered by this
Prospectus will be sold; however, the selling

                                        18


stockholders have the right to reduce the number of shares offered for sale or
to otherwise decline to sell any or all of the shares registered hereunder.

     To the best of our knowledge, none of the selling stockholders have held
any office or maintained any material relationship with us or any of our
affiliates over the past three years. Certain of the individuals named below are
or were our employees subsequent to our acquisition of substantially all of the
assets of OneRelease.



                      NAME OF SELLING                         NUMBER OF SHARES OWNED
                        STOCKHOLDER                                AND OFFERED
                      ---------------                         ----------------------
                                                           
OneRelease.com, LLC.........................................          21,003
Sigma Partners V, L.P. .....................................          60,001
Sigma Associates V, L.P. ...................................          24,963
Sigma Investors V, L.P. ....................................           3,515
Andrew Deitz................................................           2,211
Pine Family Trust U/D/T 3/16/93.............................           2,949
Brobeck, Phleger & Harrison LLP.............................           1,179
Tracy Thompson..............................................              88
Scott Karchmer..............................................              73
The Phleger Family Trust U/D/T 9/23/94......................              73
Christina Chiaramonte.......................................              58
Margaret Taylor.............................................           4,423
David A. Duffield Trust dated April 2, 1997.................           4,423
David Borgman...............................................             167
Eleanor Croze...............................................             134
Steven Hanley...............................................             583
John Heck...................................................             134
Larry Hollister.............................................             145
Jeff Peterson...............................................             181
Maya Raber..................................................             233
Rosemary Reilly.............................................             121
Mary Kaye Reynolds..........................................             289
Arlene Roberg...............................................             127
Greg Schroeder..............................................             541
Amanda Swint................................................              67
Kevin G. Hall...............................................           5,898
Additional persons to be named by subsequent amendment......           2,214
                                                                     -------
          Total:............................................         135,793
                                                                     =======


                              PLAN OF DISTRIBUTION

     We have agreed to register the shares of the selling stockholders for
resale under the Securities Act at our own expense. We intend to keep the
Registration Statement, of which this Prospectus is a part, effective at least
until the first to occur of: (i) the sale of all the shares pursuant to the
Registration Statement; or (ii) one year from the closing date of our
acquisition of substantially all of the assets of OneRelease. The selling
stockholders generally may sell or otherwise transfer the shares pursuant to
this Prospectus, in accordance with the provisions of Rule 144 under the
Securities Act or in transactions otherwise exempt from the registration under
the Securities Act.

     All of the shares issued at closing in connection with our acquisition of
substantially all of the assets of OneRelease are covered by this Prospectus and
are eligible to be resold upon the effectiveness of the Registration Statement
of which this Prospectus is a part.

     OneRelease.com, Inc. has transferred the shares covered by this Prospectus
to its stockholders, certain of whom have transferred the shares to their
respective equity holders and certain

                                        19


other related persons. We have agreed to amend the list of persons named as
selling stockholders, above, not more than two times after the Registration
Statement of which this Prospectus is a part is declared effective by the
Securities Exchange Commission, to reflect such transfers or any such additional
transfers as may be permitted under the terms of the acquisition.

     The common stock is presently listed for trading on The Nasdaq National
Market. The sale of the shares offered under this Prospectus is not being
underwritten. The selling stockholders may sell the shares covered by this
Prospectus from time to time in ordinary brokers' transactions through the
facilities of Nasdaq, in block transactions, in privately negotiated
transactions, or otherwise. Sales of shares may be effected at market prices
prevailing at the time of sale, at negotiated prices, or otherwise. There have
been no charges or commissions paid to us by One Release.com, Inc. in connection
with the issuance of the shares. It is anticipated that usual and customary
brokerage fees will be paid by the selling stockholders upon sale of the common
stock offered under this Prospectus. In connection with any sales, the selling
stockholders and any brokers participating in such sales may be deemed to be
underwriters within the meaning of the Securities Act, in which event
commissions received by such brokers may be deemed underwriting commissions
under the Securities Act.

     The selling stockholders have agreed that they will not take, directly or
indirectly, any action designed to cause or result in, or which has constituted
or might reasonably be expected to constitute, the manipulation or stabilization
of the price of our common stock or of any of our other securities. In
particular, Regulation M under the Securities Act imposes certain restrictions
on issuers, selling stockholders, and other participants in a distribution of
securities which are intended to prohibit such persons from facilitating the
distribution by "conditioning" the market for such securities.

                          DESCRIPTION OF CAPITAL STOCK

     Our authorized capital stock consists of 300,000,000 shares of common
stock, par value $0.002 per share, and 4,620,253 shares of preferred stock, par
value $0.01 per share.

COMMON STOCK

     As of October 18, 2001, there were 68,146,005 shares of our common stock
outstanding which were held of record by approximately 345 holders.

     The holders of our common stock are entitled to one vote for each share
held of record on all matters submitted to a vote of our stockholders. Holders
of our common stock do not have the right to cumulate their votes. Directors are
elected by a plurality of votes cast; except as otherwise provided under the
Delaware General Corporation Law, all other matters are approved by a majority
of the votes cast.

     Subject to preferences that may be applicable to any outstanding shares of
our preferred stock, the holders of our common stock are entitled to receive
ratably such dividends as may be declared by our board of directors out of funds
legally available therefor. See "Dividend Policy." In the event of a
liquidation, dissolution or winding up of our company, holders of our common
stock are entitled to share ratably in all assets remaining after payment of
liabilities and the liquidation preferences of any outstanding shares of our
preferred stock. Holders of our common stock have no preemptive rights and no
right to convert our common stock into any other securities. There are no
redemption or sinking fund provisions applicable to our common stock. All
outstanding shares of our common stock are fully paid and non-assessable.

PREFERRED STOCK

     We may, by resolution of our board of directors, and without any further
vote or action by our stockholders, authorize and issue, subject to certain
limitations prescribed by law, up to an
                                        20


aggregate of 4,620,253 shares of preferred stock. The preferred stock may be
issued in one or more classes or series of shares of any class or series. With
respect to any classes or series, our board of directors may determine the
designation and the number of shares, preferences, limitations and special
rights, including dividend rights, conversion rights, voting rights, redemption
rights and liquidation preferences. Because of the rights that may be granted,
the issuance of preferred stock may delay, defer or prevent a change of control.
No shares of preferred stock are outstanding and we presently have no plans to
issue shares of preferred stock.

LIMITATION ON LIABILITY

     Our certificate of incorporation limits or eliminates the liability of our
directors to us or our stockholders for monetary damages to the fullest extent
permitted by the Delaware General Corporation Law. As permitted by the Delaware
General Corporation Law, our certificate of incorporation provides that our
directors shall not be personally liable to us or our stockholders for monetary
damages for a breach of fiduciary duty as a director, except for liability:

     - for any breach of such person's duty of loyalty;

     - for acts or omissions not in good faith or involving intentional
       misconduct or a knowing violation of law;

     - for the payment of unlawful dividends and certain other actions
       prohibited by Delaware corporate law; and

     - for any transaction resulting in receipt by such person of an improper
       personal benefit.

     Our certificate of incorporation also contains provisions indemnifying our
directors and officers to the fullest extent permitted by the Delaware General
Corporation Law. We also have directors' and officers' liability insurance to
provide our directors and officers with insurance coverage for losses arising
from claims based on breaches of duty, negligence, errors and other wrongful
acts.

CERTAIN ANTI-TAKEOVER PROVISIONS

     Our by-laws provide for the division of our board of directors into three
classes. Each class must be as nearly equal in number as possible. Additionally,
each class must serve a three-year term. The terms of each class are staggered
so that each term ends in a different year over a three-year period.

     Our certificate of incorporation provides that our board of directors may
establish the rights of, and cause us to issue, substantial amounts of preferred
stock without the need for stockholder approval. Further, our board of directors
may determine the terms, conditions, rights, privileges and preferences of the
preferred stock. Our board is required to exercise its business judgment when
making such determinations. Our board of directors' use of the preferred stock
may inhibit the ability of third parties to acquire Manugistics. Additionally,
our board may use the preferred stock to dilute the common stock of entities
seeking to obtain control of Manugistics. The rights of the holders of common
stock will be subject to, and may be adversely affected by, any preferred stock
that may be issued in the future. Our preferred stock provides desirable
flexibility in connection with possible acquisitions, financings and other
corporate transactions. However, it may have the effect of discouraging,
delaying or preventing a change in control of Manugistics. We have no present
plans to issue any shares of preferred stock. The existence of the foregoing
provisions in our certificate of incorporation and by-laws could make it more
difficult for third parties to acquire or attempt to acquire control of us or
substantial amounts of our common stock.

     Section 203 of the Delaware General Corporation Law applies to Manugistics.
Section 203 of the Delaware General Corporation Law generally prohibits certain
"business combinations" between a Delaware corporation and an "interested
stockholder." An "interested stockholder" is

                                        21


generally defined as a person who, together with any affiliates or associates of
such person, beneficially owns, or within three years did own, directly or
indirectly, 15% or more of the outstanding voting shares of a Delaware
corporation. The statute broadly defines business combinations to include:

     - mergers;

     - consolidations;

     - sales or other dispositions of assets having an aggregate value in excess
       of 10% of the consolidated assets of the corporation or aggregate market
       value of all outstanding stock of the corporation; and

     - certain transactions that would increase the "interested stockholder's"
       proportionate share ownership in the corporation.

     The statute prohibits any such business combination for a period of three
years commencing on the date the "interested stockholder" becomes an "interested
stockholder," unless:

     - the business combination is approved by the corporation's board of
       directors prior to the date the "interested stockholder" becomes an
       "interested stockholder"; or

     - the "interested stockholder" acquired at least 85% of the voting stock of
       the corporation (other than stock held by directors who are also officers
       or by certain employee stock plans) in the transaction in which it
       becomes an "interested stockholder" if the business combination is
       approved by a majority of the board of directors and by the affirmative
       vote of at least two-thirds of the outstanding voting stock that is not
       owned by the "interested stockholder."

     The Delaware General Corporation Law contains provisions enabling a
corporation to avoid Section 203's restrictions if stockholders holding a
majority of the corporation's voting stock approve an amendment to the
corporation's certificate of incorporation or by-laws to avoid the restrictions.
We have not and do not currently intend to "elect out" of the application of
Section 203 of the Delaware General Corporation Law.

                                 LEGAL MATTERS

     Certain legal matters with respect to the validity of the common stock
offered by this Prospectus are being passed upon for Manugistics by Dilworth
Paxson LLP, Philadelphia, Pennsylvania. Joseph H. Jacovini, Chairman and a
member of Dilworth Paxson LLP, is a member of the board of directors of
Manugistics. On September 30, 2001, Mr. Jacovini was the beneficial owner of
153,000 shares of common stock (including 2,672 shares of common stock held by
his spouse and a total of 84,328 shares of common stock issuable upon exercise
of certain options).

                                    EXPERTS

     The consolidated financial statements and related financial statement
schedule, incorporated in this prospectus by reference from the Manugistics
Group, Inc. Annual Report on Form 10-K for the period ended February 28, 2001,
have been audited by Deloitte and Touche LLP, independent auditors, as stated in
their reports, which are incorporated herein by reference, and have been so
incorporated in reliance upon the reports of such firm given upon their
authority as experts in accounting and auditing.

     The consolidated balance sheets of Talus Solutions, Inc. and its subsidiary
as of December 31, 1999 and 1998, and the related consolidated statements of
operations, stockholders' equity and cash flows for each of the years in the
three-year period ended December 31, 1999, have been incorporated by reference
herein and in the Registration Statement in reliance upon the report of

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KPMG LLP, independent certified public accountants, incorporated by reference
herein, and upon the authority of said firm as experts in accounting and
auditing.

                      WHERE YOU CAN FIND MORE INFORMATION

     We file annual, quarterly and current reports, proxy statements and other
information with the SEC. You may read and copy any materials we file with the
SEC at the SEC's public reference room at Room 1024, 450 Fifth Street, N.W.,
Washington, D.C. 20549, as well as at the SEC's regional offices at 500 West
Madison Street, Suite 1400, Chicago, Illinois 60661 and 7 World Trade Center,
Suite 1300, New York, NY 10048. You can request copies of these documents by
writing to the SEC and paying a fee for the copying cost. Please call the SEC at
1-800-SEC-0330 for more information about the operation of the public reference
rooms. Our SEC filings are also available at the SEC's Internet website at
"http://www.sec.gov." In addition, you can read and copy our SEC filings at the
office of the National Association of Securities Dealers, Inc. at 1735 K Street,
Washington, D.C. 20006.

     The SEC allows us to "incorporate by reference" information that we file
with them, which means that we can disclose important information to you by
referring you to those documents. The information incorporated by reference is
an important part of this Prospectus, and information that we file later with
the SEC will automatically update and supersede this information. We incorporate
by reference the documents listed below and any future filings we will make with
the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act:

     - Current Report on Form 8-K, filed January 4, 2001;

     - Annual Report on Form 10-K for the year ended February 28, 2001;

     - Current Report on Form 8-K, filed March 7, 2001;

     - Current Report on Form 8-K, filed March 8, 2001;

     - Quarterly Report on Form 10-Q for the quarter ended May 31, 2001;

     - Current Report on Form 8-K filed September 6, 2001;

     - Quarterly Report on Form 10-Q for the quarter ended August 31, 2001; and

     - The description of our common stock contained in our Registration
       Statement on Form 8-A, as amended, including any amendment or report
       filed to update the description.

     You may request a copy of these filings at no cost, by writing or
telephoning us at the following address:

                               INVESTOR RELATIONS
                            MANUGISTICS GROUP, INC.
                           2115 EAST JEFFERSON STREET
                              ROCKVILLE, MD 20852
                                 (301) 984-5000

     This Prospectus is part of a Registration Statement we filed with the SEC.
You should rely only on the information incorporated by reference or provided in
this Prospectus and the Registration Statement. We have authorized no one to
provide you with different information. You should not assume that the
information in this Prospectus is accurate as of any date other than the date on
the front of the document.

     We have not authorized any dealer, sales person or other person to give any
information or to make any representations other than those contained in this
Prospectus or any Prospectus Supplement. You must not rely on any unauthorized
information. This Prospectus is not an offer of these securities in any state
where an offer is not permitted. The information in this Prospectus is current
as of October 19, 2001. You should not assume that this Prospectus is accurate
as of any other date.

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