How To Fix /INCMD/MSG424 - Loop detected within supersession chain &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /INCMD/MSG -

• Message number: 424

• Message text: Loop detected within supersession chain &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /INCMD/MSG424 - Loop detected within supersession chain &1 ?

  The SAP error message /INCMD/MSG424 Loop detected within supersession chain &1 indicates that there is a loop in the supersession chain of materials or products. This typically occurs when a material is set to supersede another material, and that material, in turn, is set to supersede the first material, creating a circular reference.
  Cause:
  
  Circular Supersession: The most common cause is that the supersession relationships between materials are incorrectly defined, leading to a situation where material A supersedes material B, and material B supersedes material A.
  Incorrect Configuration: There may be errors in the configuration of the material master data, particularly in the supersession fields.
  Data Migration Issues: If data was migrated from another system, it’s possible that the migration process introduced inconsistencies in the supersession relationships.
  
  Solution:
  
  Review Supersession Relationships: Check the supersession relationships for the materials involved. You can do this by navigating to the material master data and reviewing the "Supersession" tab.
  Correct Circular References: Identify and correct any circular references. Ensure that each material only supersedes another material that does not lead back to itself.
  Data Cleanup: If the issue arose from data migration, perform a cleanup of the material master data to remove or correct the problematic relationships.
  Testing: After making changes, test the supersession functionality to ensure that the error does not reoccur.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like MM03 (Display Material) to check the material master data and MM02 (Change Material) to make necessary changes.
  Documentation: Refer to SAP documentation on material management and supersession processes for detailed guidelines on how to manage material relationships.
  Support: If the issue persists after attempting to resolve it, consider reaching out to SAP support or consulting with an SAP expert for further assistance.
  
  By addressing the circular references and ensuring that the supersession relationships are correctly defined, you should be able to resolve the error message and prevent it from occurring in the future.