Diagnosis
This error was caused by an exception in theCSAP_MAT_BOM_READ function module.
The function module was called with the following parameters:
Material number: &V1&
Plant: &V2&
Alternative BOM: &V3&
BOM usage: &V4&

System Response
The system terminates the BOM explosion.

Procedure
Check the assigned bill of material in transactionCS03.