Commitment Item Error - Assembly Processing

Hi Experts,

I am using Assembly Processing for creating Projects through Sales Order.

when i am creating sales order, It asks for Std .network & std WBS..but further when saving it gives following error.

Is there a field where i can enter commitment item.

No commitment item entered in item 00010 P110

Message no. FI311

Diagnosis

The posted document contains at least one company code in which Funds Management, Cash Budget Management, or Project Cash Management is active. Therefore you must enter a commitment item in all involved company codes.

Procedure

Enter a commitment item.

If you cannot enter a commitment item, check with your system administrator that your account assignment derivation is adjusted so that the system can automatically derive a commitment item from another account assignment, or from the G/L or cost element.