How To Fix CK621 - Int. error with BOM explosion: Matl & in plant & exists more than once

CK621 - Overview

• Message type: E = Error

• Message class: CK - Product Costing Messages

• Message number: 621

• Message text: Int. error with BOM explosion: Matl & in plant & exists more than once

What causes this issue?

An error occurred during quantity structure determination. Material
&V1& in plant &V2& appears several times in the material overview.

System Response

The material cannot be costed.

How to fix this error?

Notify your system administration.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CK621 - Int. error with BOM explosion: Matl & in plant & exists more than once ?

  The SAP error message CK621 indicates that there is an issue with the Bill of Materials (BOM) explosion process. Specifically, it means that the material specified in the error message exists more than once in the BOM for the given plant. This can lead to confusion during the BOM explosion process, as SAP cannot determine which instance of the material to use.
  
  Cause:
  
  Duplicate BOM Entries: The most common cause of this error is that the same material is listed multiple times in the BOM for the same plant. This can happen due to data entry errors or incorrect BOM configuration.
  Incorrect BOM Configuration: If the BOM is not set up correctly, it may lead to multiple entries for the same component.
  Material Master Issues: There may be issues with the material master data that cause the system to recognize the same material in different ways.
  
  
  Solution:
  
  
  Check BOM for Duplicates:
  
  Go to the BOM transaction (CS03)