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                                                                   EXHIBIT 10.13

                                      NOTE

$94,999.50                                                       August 20, 1999

     FOR VALUE RECEIVED, Mark Oney promises to pay to Extensity, Inc., a
Delaware corporation (the "Company"), the principal sum of ninety-four thousand,
nine hundred and ninety-nine dollars and fifty cents ($94,999.50), together with
interest on the unpaid principal hereof from the date hereof at the rate of
5.87% per annum, compounded semiannually.

     Principal and interest shall be due and payable on July 16, 2004. Payment
of principal and interest shall be made in lawful money of the United States of
America.

     The undersigned may at any time prepay all or any portion of the principal
or interest owing hereunder.

     This Note is subject to the terms of the Option, dated as of July 16, 1999.
This Note is secured in part by a pledge of the Company's Common Stock under the
terms of a Security Agreement of even date herewith and is subject to all the
provisions thereof.

     The holder of this Note shall not have full recourse against the
undersigned in the event of default hereunder, including without limitation all
rights in the collateral securing this Note pursuant to the Security Agreement.

     In the event the undersigned shall cease to be an employee, director or
consultant of the Company for any reason, this Note shall, at the option of the
Company, be accelerated, and the whole unpaid balance on this Note of principal
and accrued interest shall be immediately due and payable sixty (60) days after
the termination of the undersigned's services with the Company.

     Should any action be instituted for the collection of this Note, the
reasonable costs and attorneys' fees therein of the holder shall be paid by the
undersigned.

                                                      /s/  MARK ONEY
                                                           Mark Oney