Define a default account assignment for payment transfer

Dear Colleagues;

I`ve set "Payment on Acct from FI" on transaction OF29 (settings for payment transfer). System displays a warning message with the following procedure: "Ensure that a funds center and a commitment item are defined for payments without invoice reference in the customizing of Funds Management Government."

Where can I define a default funds center and a commitment item for payments without invoice reference? (custominzing way or transaction.....) How can I transfer Dow Payments and Dow Payments Request to FM?

obs: I`m using payment selection to trasfer payments to FM (program RFFMS200).

Thanks

Best regards,

Gustavo