Hello,
What is the error message number?
Refer KBA 1987762
Check whether the header material and the BOM items from the BOM structure is a configurable material in the Material Master (transaction MM03):
Material is marked as configurable on tab "Basic data 2".
Plant-specific configuration is set on tab "MRP 3".
Case 1:
If the material is not configurable, but a configuration profile exists in transaction CU43, delete the configuration profile and run MRP again.
Case 2:
If the material is configurable, but it does not have a configuration profile, create one by using transaction CU41.
Best Regards,
R.Brahmankar