How To Fix CNV_NCE_BAS443 - Function module &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 443

• Message text: Function module &1 does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS443 - Function module &1 does not exist ?

  The SAP error message CNV_NCE_BAS443, which states "Function module &1 does not exist," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is trying to call a function module that is not available in the system.
  Causes:
  
  Missing Function Module: The function module referenced in the error message is not present in the SAP system. This could be due to an incomplete installation or an issue during the upgrade process.
  Incorrect Configuration: The migration or conversion process may be incorrectly configured, leading to calls to non-existent function modules.
  Version Compatibility: The function module may exist in a different version of SAP or may have been deprecated in the current version.
  Transport Issues: If the function module was supposed to be transported from another system, it may not have been transported correctly.
  
  Solutions:
  
  Check Function Module Existence: Use transaction SE37 or SE80 to check if the function module exists in your system. If it does not exist, you may need to create it or find out why it is missing.
  Review Migration Settings: Ensure that the migration settings are correctly configured and that all necessary components are installed.
  Upgrade or Patch: If the function module is part of a newer version or patch, consider upgrading your system or applying the necessary patches.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this issue. There may be specific notes related to the migration process that provide guidance or fixes.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They can provide insights based on the specific context of your system.
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SE80 (Object Navigator), ST22 (Dump Analysis), SM21 (System Log).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on function modules related to your migration scenario.
  Documentation: Review the official SAP documentation for the migration tool you are using, as it may provide additional context or troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.