Diagnosis
You entered a profit center for posting of a business partner item. Thesettings for company code &V1& for Contract Accounts Receivable andPayable do allow account assignment to a profit center in businesspartner items.

Procedure
Correct the company code, or delete the profit center from your postingspecifications. If you want to allow account assignment to a profitcenter in the business partner items for company code &V1&, then youhave to change the settings for the company code in Customizing forAccounts Receivable and Payable.