How To Fix CNV_PE604 - Extension rule &1 will be used in both Selection and Enrich processes

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 604

• Message text: Extension rule &1 will be used in both Selection and Enrich processes

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE604 - Extension rule &1 will be used in both Selection and Enrich processes ?

  The SAP error message CNV_PE604 indicates that there is a conflict in the use of an extension rule within the data conversion process, specifically in the context of the SAP Landscape Transformation (SLT) or data migration scenarios. This error occurs when the same extension rule is being applied in both the Selection and Enrich processes, which can lead to ambiguity and potential data inconsistencies.
  Cause:
  
  Duplicate Usage: The same extension rule is defined to be used in both the Selection phase (where data is selected from the source) and the Enrich phase (where data is enhanced or transformed).
  Configuration Issues: There may be a misconfiguration in the data migration settings or rules that leads to the same rule being applied in multiple contexts.
  Rule Definition: The extension rule may not be properly defined or scoped, leading to its unintended application in both processes.
  
  Solution:
  
  Review Extension Rules: Check the configuration of the extension rules in the data migration project. Ensure that each rule is uniquely defined for either the Selection or Enrich process, but not both.
  Modify Rule Usage: If a rule is necessary for both processes, consider creating separate rules for each context. This will help avoid conflicts and ensure clarity in the data transformation process.
  Consult Documentation: Refer to the SAP documentation for the specific data migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) to understand the best practices for defining and using extension rules.
  Testing: After making changes, conduct thorough testing to ensure that the data migration process works as expected without triggering the CNV_PE604 error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuring extension rules.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  SAP Support: If the issue persists after attempting the above solutions, consider reaching out to SAP Support for further assistance.
  
  By addressing the configuration of the extension rules and ensuring they are not duplicated across processes, you should be able to resolve the CNV_PE604 error effectively.