Diagnosis
The header material &V1& has the material type &V2&, which isidentified as an empties material type in the Customizing of thematerial types. Empties materials are not allowed in Retail as a BOMheader. Otherwise mulitlevel BOMs could arise, which are not supportedin Retail.

System Response
The BOM cannot be processed.

Procedure
During the product upload of the header product, ensure that apermitted header material is created in the OLTP System.