SAP Message >5721 - Item &2 / &3 from document &1 not written off

Diagnosis
Document &V1& is subject to delayed revenue posting. A single businesspartner item, in this case item &V2&/&V3&, of such a document cannot bewritten off as long as other business partner items of the samedocument remain open.

System Response
The business partner item in question is not written off.

Procedure
Select all business partner items of the document for write-off.