SAP Message RQ149 - You must not define a planning group for agency transactions

Diagnosis
You must not define planning groups for agency deals because such dealsreference accounts receivable (payers) and accounts payable (payees),but planning groups must be assigned to one or the other, not both.
For this reason, the system assumes, when recording agency deals, thatthe company code data for the customer or vendor has already beencreated. The system then uses the planning group defined in the masterdata for update purposes.
If the company code data has NOT yet been created, no data is recordedin cash management.