UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 13G/A

(AMENDMENT NO. 4)*

UNDER THE SECURITIES EXCHANGE ACT OF 1934

SAP AKTIENGESELLSCHAFT SYSTEME, ANWENDUNGEN, PRODUKTE IN DER DATENVERARBEITUNG

(Name of Issuer)

ORDINARY SHARES WITHOUT NOMINAL VALUE

(Title of Class of Securities)

803054204

(CUSIP Number)

DECEMBER 31, 2007

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:

o Rule 13d-1(b)

o Rule 13d-1(c)

þ Rule 13d-1(d)

*   The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

     The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, SEE the NOTES).

CUSIP No.

CUSIP No.

CUSIP No.

ITEM 1(A). Name of Issuer.

     SAP Aktiengesellschaft Systeme, Anwendungen, Produkte in der Datenverarbeitung (the “Company”).

ITEM 1(B). Address of Issuer’s Principal Executive Offices.

     The Company’s principal executive offices are located at Dietmar Hopp Allee 16, 69190 Walldorf, Federal Republic of Germany.

ITEMS 2(A). Name of Person Filing.

     This statement is filed on behalf of the following persons with respect to ordinary shares of the Company beneficially held by such persons (collectively, the “Shares”):

     (i) Dr. Hasso Plattner, with respect to Shares beneficially owned by him and with respect to shares beneficially owned by Hasso Plattner GmbH & Co. Beteiligungs-KG and Hasso Plattner Förderstiftung gGmbH;

     (ii) Hasso Plattner GmbH & Co. Beteiligungs-KG, with respect to Shares beneficially owned by it; and

     (iii) Hasso Plattner Verwaltungs-GmbH, with respect to Shares beneficially owned by Hasso Plattner GmbH & Co. Beteiligungs-KG.

     The foregoing persons are hereinafter referred to collectively as the “Reporting Persons.” Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party.

ITEM 2(B). Address of Principal Business Office or, if None, Residence.

     The address of the principal business office of each of the Reporting Persons is c/o Wipfler & Partner, Steuerberater-Sozietat, Max-Planck-Strasse 8, D-69190 Walldorf, Federal Republic of Germany.

ITEM 2(C). Citizenship.

     (i) Dr. Hasso Plattner is a citizen of the Federal Republic of Germany.

     (ii) Hasso Plattner GmbH & Co. Beteiligungs-KG is a limited liability partnership organized under the laws of the Federal Republic of Germany.

     (iii) Hasso Plattner Verwaltungs-GmbH is a corporation organized under the laws of the Federal Republic of Germany.

ITEM 2(D). Title of Class of Securities.

     Ordinary Shares without Nominal Value.

ITEM 2(E). CUSIP Number.

     803054204

ITEM 3. If this Statement is Filed Pursuant to Rules 13d-1(b) or 13d- 2(b) or (c), Check Whether the Person Filing is a:

(a)		o		Broker or dealer registered under Section 15 of the Act,
(b)		o		Bank as defined in Section 3(a)(6) of the Act,
(c)		o		Insurance Company as defined in Section 3(a)(19) of the Act,
(d)		o		Investment Company registered under Section 8 of the Investment Company Act of 1940,
(e)		o		Investment Adviser in accordance with Rule 13d-1 (b)(1)(ii)(E),
(f)		o		Employee Benefit Plan or Endowment Fund in accordance with 13d-1 (b)(1)(ii)(F),
(g)		o		Parent Holding Company or control person in accordance with Rule 13d-1 (b)(1)(ii)(G),
(h)		o		Savings Association as defined in Section 3(b) of the Federal Deposit Insurance Act,
(i)		o		Church Plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940,
(j)		o		Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

ITEM 4. Ownership.

     The percentages used herein and in the rest of Item 4 are calculated based upon 1,267,537,248 total ordinary shares of the Company issued and outstanding as of December 31, 2006, based upon a representation of the Company. As of the close of business on December 31, 2006:

	A.		DR. HASSO PLATTNER
	(a)		Amount beneficially owned: 128,987,982
	(b)		Percent of class: 10.350%

(c)		(i) Sole power to vote or direct the vote: 24,100
		(ii) Shared power to vote or direct the vote: 128,963,882
		(iii) Sole power to dispose or direct the disposition: 24,100
		(iv) Shared power to dispose or direct the disposition: 128,963,882
B.		HASSO PLATTNER GMBH & CO. BETEILIGUNGS-KG
(a)		Amount beneficially owned: 113,718,960
(b)		Percent of class: 9.1248%
(c)		(i) Sole power to vote or direct the vote: 113,718,960
		(ii) Shared power to vote or direct the vote: 0
		(iii) Sole power to dispose or direct the disposition: 113,718,960
		(iv) Shared power to dispose or direct the disposition: 0
C.		HASSO PLATTNER VERWALTUNGS-GMBH
(a)		Amount beneficially owned: 113,718,960
(b)		Percent of class: 9.1248%
(c)		(i) Sole power to vote or direct the vote: 0
		(ii) Shared power to vote or direct the vote: 113,718,960
		(iii) Sole power to dispose or direct the disposition: 0
		(iv) Shared power to dispose or direct the disposition: 113,718,960

ITEM 5. Ownership of Five Percent or Less of a Class

     If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following. o

ITEM 6. Ownership of More Than Five Percent on Behalf of Another Person.

     To the knowledge of the Reporting Persons, other persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Shares. However, no such persons have an interest in more than five percent of the ordinary shares.

ITEM 7.		Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.

     Not Applicable.

ITEM 8.		Identification and Classification of Members of the Group.

     Not Applicable.

ITEM 9.		Notice of Dissolution of Group.

     Not Applicable.

ITEM 10.		Certification.

     Not Applicable.

SIGNATURES

     After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 11, 2008

		/s/ Dr. Hasso Plattner
		Dr. Hasso Plattner
		Hasso Plattner GmbH & Co.
		Beteiligungs-KG
		By:		Hasso Plattner Verwaltungs-GmbH, as sole general partner

EXHIBIT INDEX

EXHIBIT NO.		EXHIBIT DESCRIPTION
99.1		Joint Filing Agreement

Exhibit 99.1

JOINT FILING AGREEMENT

     The undersigned hereby agree that the statement on Schedule 13G/A (Amendment No. 4) with respect to the ordinary shares of SAP Aktiengesellschaft Systeme, Anwendungen, Produkte in der Datenverarbeitung is, and any amendment thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended. The undersigned hereby further agree that this Joint Filing Agreement be included as an exhibit to such statement and any such amendment. This Joint Filing Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

Dated: February 11, 2008

		/s/ Dr. Hasso Plattner
		Dr. Hasso Plattner
		Hasso Plattner GmbH & Co.
		Beteiligungs-KG
		By:		Hasso Plattner Verwaltungs-GmbH, as sole general partner