SAP Message WR033 - Material &1, item &2 cannot be updated

Diagnosis
You entered a structured material. The goods movement cannot be posted,as the sum of the cost values of the components does not equal the costvalue of the header.

Procedure
Check how the cost values for the components of a structured materialare determined. If a customer exit is used, contact your systemadministration. If all other cases, contact the SAP hotline.