SAP Message 29354 - Item category & does not allow you to enter a document

Diagnosis You are creating or changing a BOM item and have entered item categoryV1 with data for a document. The item category is used to link the item to a specific SAP databasetable (such as document info record). Item category &V1& does not allowyou to enter an item with document data. Procedure Please correct the item category or cancel your entry for the documentdata. You can cancel processing of this item by chooseing the system-wideCancel button.