How To Fix /ACCGO/MCK_MAINT775 - Error in plant assignment for material &1; CBOM already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/MCK_MAINT -

• Message number: 775

• Message text: Error in plant assignment for material &1; CBOM already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/MCK_MAINT775 - Error in plant assignment for material &1; CBOM already exists ?

  The SAP error message /ACCGO/MCK_MAINT775 indicates that there is an issue with the plant assignment for a material because a Configuration Bill of Materials (CBOM) already exists for that material. This typically occurs in the context of SAP's Advanced Variant Configuration (AVC) or when managing materials in the context of production planning.
  Cause:
  The error is triggered when you attempt to assign a material to a plant, but the system detects that a CBOM already exists for that material. This can happen if:
  
  The material is already assigned to another plant.
  The material has been configured in a way that it is linked to a CBOM, which is not compatible with the new plant assignment.
  There are inconsistencies in the configuration data or master data.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing CBOM: 
  
  Use transaction code CS03 to display the existing Configuration Bill of Materials for the material in question. Verify if the CBOM is indeed assigned to the plant you are trying to assign the material to.
  
  
  
  Review Plant Assignment:
  
  Ensure that the material is not already assigned to another plant. You can check this using transaction code MM03 to view the material master data and see the plant assignments.
  
  
  
  Modify or Delete CBOM:
  
  If the CBOM is not needed or is incorrect, you may need to modify or delete it. Use transaction code CS02 to change the CBOM or CS01 to create a new one if necessary.
  
  
  
  Check Configuration Settings:
  
  Ensure that the configuration settings for the material are correct and that there are no inconsistencies in the configuration data.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to CBOM and plant assignments for any specific guidelines or known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CS01: Create Configuration Bill of Material
  CS02: Change Configuration Bill of Material
  CS03: Display Configuration Bill of Material
  MM03: Display Material Master
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for detailed information on CBOM and material management.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.