How To Fix CNV_PE_POST122 - Simulation function module (WL2SIM) not generated yet

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_POST -

• Message number: 122

• Message text: Simulation function module (WL2SIM) not generated yet

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_POST122 - Simulation function module (WL2SIM) not generated yet ?

  The SAP error message "CNV_PE_POST122 Simulation function module (WL2SIM) not generated yet" typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is trying to execute a simulation function module that has not yet been generated.
  Cause:
  
  Missing Function Module Generation: The function module WL2SIM has not been generated in the system. This can happen if the necessary steps to generate the function module were not completed.
  Incomplete Configuration: The configuration for the data migration or conversion process may be incomplete, leading to the function module not being created.
  Transport Issues: If the system is part of a transport landscape, the function module may not have been transported correctly.
  Authorization Issues: Lack of proper authorizations may prevent the generation of the function module.
  
  Solution:
  
  
  Generate the Function Module:
  
  Go to transaction code SE80 (Object Navigator) or SE37 (Function Builder).
  Check if the function module WL2SIM exists. If it does not, you may need to generate it manually or through the appropriate migration tool.
  If it exists but is not active, activate it.
  
  
  
  Run the Migration Tool Again:
  
  Sometimes, simply re-running the migration or conversion tool can trigger the generation of the necessary function modules.
  
  
  
  Check Configuration:
  
  Ensure that all necessary configuration steps for the migration or conversion process have been completed. Refer to the relevant SAP documentation for the specific migration scenario you are working on.
  
  
  
  Check Transport Requests:
  
  If you are working in a development environment, ensure that all relevant transport requests have been released and imported into the target system.
  
  
  
  Review Authorizations:
  
  Ensure that you have the necessary authorizations to generate and execute function modules. Consult with your SAP Basis or security team if needed.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve the issue.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific migration tool you are using, as it may provide additional insights and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if you have a support contract.
  
  By following these steps, you should be able to resolve the error related to the simulation function module not being generated.