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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington D.C. 20549
 FORM 10-Q/A
 Amendment No. 1
 (Mark One)
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    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the quarterly period ended September 30, 2009
 OR
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    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 For the Transition Period from            to
 Commission File Number: 0-27876
 JDA SOFTWARE GROUP, INC.
 (Exact name of registrant as specified in its charter)
 Delaware
(State or other jurisdiction of 
incorporation or organization)
    
    86-0787377
(I.R.S. Employer
Identification No.)
 14400 North 87 th Street
Scottsdale, Arizona 85260
(480) 308-3000
(Address and telephone number of principal executive offices)
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  Large accelerated filer o
    
    Accelerated filer þ
    
    Non-accelerated filer   o(Do not check if a smaller reporting company)
    
    Smaller reporting company o
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TABLE OF CONTENTS  SIGNATURESEXHIBIT INDEXEX-10.1EX-31.1EX-31.2EX-32.1    Table of Contents  JDA SOFTWARE GROUP, INC.
 AMENDMENT NO. 1 TO QUARTERLY REPORT ON FORM 10-Q/A
 Explanatory Note
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SIGNATURES
  JDA SOFTWARE GROUP, INC.Dated: December 18, 2009
    By:
    /s/ Hamish N. BrewerHamish N. BrewerPresident and Chief Executive Officer
(Principal Executive Officer)By:
    /s/ Peter S. HathawayPeter S. HathawayExecutive Vice President and Chief Financial Officer(Principal Financial and Accounting Officer) 3




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EXHIBIT INDEX
 Exhibit No.
    
    Description of Document3.1***
    
    Third Restated Certificate of Incorporation of the Company
together with Certificate of Amendment dated July 23, 2002.3.2**
    
    First Amended and Restated Bylaws of JDA Software Group, Inc.3.3****
    
    Certificate of Designation of rights, preferences,
privileges and restrictions of Series B Convertible
Preferred Stock of JDA Software Group, Inc filed with the
Secretary of State of the State of Delaware on July 5, 2006.3.4*****
    
    Certificate of Correction filed to correct a certain error
in the Certificate of Designation of rights, preferences,
privileges and restrictions of Series B Convertible
Preferred Stock of JDA Software Group, Inc. filed with the
Secretary of State of the State of Delaware on July 5, 2006.4.1*
    
    Specimen Common Stock Certificate of JDA Software Group, Inc.10.1 (1)(2)
    
    Executive Employment Agreement between Pete Hathaway and JDA
Software Group, Inc. dated July 20, 2009.10.2 (1)(2)*******
    
    Executive Employment Agreement between Jason B. Zintak and
JDA Software Group, Inc. dated August 18, 2009.10.3******
    
    Stock Purchase Agreement between JDA Software Group, Inc.
and Thoma Bravo Inc. dated September 8, 2009.10.4*******
    
    Separation Agreement between JDA Software Group, Inc. and
Kristen L. Magnuson dated April 6, 2009.10.5*******
    
    Separation Agreement between JDA Software Group, Inc. and
Christopher J. Koziol dated August 3, 2009.31.1
    
    Rule 13a-14(a) Certification of Chief Executive Officer.31.2
    
    Rule 13a-14(a) Certification of Chief Financial Officer.32.1
    
    Certification of Chief Executive Officer and Chief Financial
Officer pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
 (1)
    
    Management contracts or compensatory plans or arrangements covering executive officers or
directors of the Company.(2)
    
    Certain confidential information contained in this exhibit was omitted by means of redacting
a portion of the text and replacing it with an asterisk. This exhibit has been filed
separately with the Secretary of the Securities and Exchange Commission without the redaction
pursuant to a Confidential Treatment Request under Rule 24b-2 of the Securities Exchange Act
of 1934.*
    
    Incorporated by reference to the Companys Registration Statement on Form S-1 (File No.
333-748), declared effective on March 14, 1996.**
    
    Incorporated by reference to the Companys Quarterly Report on Form 10-Q for the quarterly
period ended June 30, 1998, as filed on August 14, 1998.***
    
    Incorporated by reference to the Companys Quarterly Report on Form 10-Q for the quarterly
period ended September 30, 2002, as filed on November 12, 2002.****
    
    Incorporated by reference to the Companys Current Report on Form 8-K dated July 5, 2006, as
filed on July 7, 2006.*****
    
    Incorporated by reference to the Companys Quarterly Report on Form 10-Q for the quarterly
period ended September 30, 2006, as filed on November 9, 2006.******
    
    Incorporated by reference to the Companys Current Report on Form 8-K dated and filed on
September 9, 2009.*******
    
    Incorporated by reference to the Companys Quarterly Report on Form 10-Q for the quarterly
period ended September 30, 2009, as filed on November 3, 2009. 4