How To Fix CNV_PE_GEN129 - Discrepancy between generated function module and selection program

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 129

• Message text: Discrepancy between generated function module and selection program

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_GEN129 - Discrepancy between generated function module and selection program ?

  The SAP error message CNV_PE_GEN129 indicates a discrepancy between a generated function module and the selection program in the context of a data migration or conversion process, typically related to the SAP Conversion Tools (like the SAP S/4HANA Migration Cockpit or other data migration tools).
  Cause:
  This error usually arises due to one of the following reasons:
  
  Inconsistency in Generated Code: The function module that was generated does not match the expected structure or logic defined in the selection program. This can happen if there were changes made to the selection program after the function module was generated.
  Version Mismatch: If the selection program has been modified or updated after the function module was created, it can lead to discrepancies.
  Transport Issues: If the function module was transported from one system to another without the corresponding changes in the selection program, it can lead to inconsistencies.
  
  Solution:
  To resolve the CNV_PE_GEN129 error, you can follow these steps:
  
  
  Regenerate the Function Module:
  
  Go to the transaction code where the selection program is defined.
  Regenerate the function module to ensure that it reflects the current state of the selection program.
  This can often be done through the relevant transaction or tool used for data migration.
  
  
  
  Check for Modifications:
  
  Review any recent changes made to the selection program or the function module.
  Ensure that both are in sync and that any modifications are reflected in both components.
  
  
  
  Transport Consistency:
  
  If the function module was transported, ensure that the selection program was also transported correctly.
  Check the transport logs for any issues or inconsistencies.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the selection program and the function module to identify the specific discrepancies.
  Use transaction SE37 to analyze the function module and SE80 or SE38 for the selection program.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific migration tool you are using. There may be known issues or patches available.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error and the steps you have taken.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on best practices for data migration.
  Migration Tools Documentation: Review the documentation for the specific migration tool you are using, as it may contain troubleshooting steps or guidelines for resolving common issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and resolve the discrepancy causing the CNV_PE_GEN129 error.