how to define commitment item as a document splitting characteristic

Dear Guru,

I try to use function document splitting of New-gl in IDES system company code 1000

at the time i activate the document splitting in IMG , sap thrown an error message below.

could someone please tell me the prerequisite steps to do.

please note that , i also try to create a scenario for commitment item . but it's look like we can't define our own scenario for creating the characteristic.

anyway else? please kindly suggest

Thank you in advance

AJ

below is the help for an error

Funds Management is active for company code &V1. Since Funds Management is updated on the basis of document  splitting information, the commitment item must be defined as a document splitting characteristic in General Ledger Accounting.

Procedure

Choose one of the following options:

• Define the commitment item (FIPOS) as a document splitting
  characteristic in Customizing for General Ledger Accounting (New) under
  Define Document
  Splitting Characteristics for General Ledger Accounting;
  or

• Deactivate document splitting for the company code. For this, note the
  restrictions that apply to cross-company code transactions.

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