Diagnosis
An error occurred during BOM explosion for material &V2&. The BOM withusage &V3& alternative &V4& contains several main parts indiscontinuation group &V1&.

System Response
Discontinuation control with several main parts per discontinuationgroup is not supported. To avoid inconsistent component requirements,BOM explosion is terminated.

Procedure
Check the discontinuation group in the BOM concerned. Change the mainparts to dependent items to be discontinued, or distribute the mainparts among different discontinuation groups.