How To Fix /INCMD/MSG218 - Cannot have same preceding and succeeding assemblies in a relation

SAP Error Message - Details

• Message type: E = Error

• Message class: /INCMD/MSG -

• Message number: 218

• Message text: Cannot have same preceding and succeeding assemblies in a relation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /INCMD/MSG218 - Cannot have same preceding and succeeding assemblies in a relation ?

  The SAP error message /INCMD/MSG218 Cannot have same preceding and succeeding assemblies in a relation typically occurs in the context of production planning or assembly processing within SAP, particularly when dealing with assembly relationships in a bill of materials (BOM) or production order.
  Cause:
  This error arises when there is a configuration issue in the assembly relationships defined in the system. Specifically, it indicates that the same assembly is being referenced as both a predecessor and a successor in a relationship. This creates a logical inconsistency because it implies a circular dependency, which is not allowed in the assembly structure.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Review Assembly Relationships:
  
  Go to the relevant BOM or production order and check the assembly relationships defined.
  Look for any instances where the same assembly is listed as both a predecessor and a successor.
  
  
  
  Modify Relationships:
  
  If you find such a relationship, you will need to modify it. Remove or change the relationship so that the same assembly is not referenced in both roles.
  Ensure that the assembly relationships make logical sense and do not create circular dependencies.
  
  
  
  Check for Data Integrity:
  
  Ensure that there are no other data integrity issues in the BOM or production order that could be causing this error.
  Validate the entire structure to ensure that all components and assemblies are correctly defined.
  
  
  
  Test Changes:
  
  After making the necessary changes, test the assembly process again to ensure that the error no longer occurs.
  
  
  
  Consult Documentation:
  
  If you are unsure about how to modify the relationships, consult SAP documentation or your organization's SAP support team for guidance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CS02 (Change BOM), CS03 (Display BOM), or CO02 (Change Production Order) to access and modify the relevant data.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address known issues.
  User Roles: Ensure that you have the necessary permissions to make changes to BOMs or production orders in SAP.
  
  By following these steps, you should be able to resolve the error and ensure that your assembly relationships are correctly configured.