How To Fix CNV_10020427 - Specific function module &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 427

• Message text: Specific function module &1 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020427 - Specific function module &1 does not exist ?

  The SAP error message CNV_10020427, which states that a specific function module does not exist, typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during system upgrades. This error indicates that the system is trying to call a function module that is either not defined in the system or has been incorrectly referenced.
  Causes:
  
  Missing Function Module: The function module that is being called does not exist in the SAP system. This could be due to a missing transport or an incomplete installation of a component.
  Incorrect Naming: There may be a typo or incorrect naming in the code or configuration that references the function module.
  Version Compatibility: The function module may exist in a different version of SAP but not in the current version you are using.
  Authorization Issues: The user executing the process may not have the necessary authorizations to access the function module.
  
  Solutions:
  
  
  Check Function Module Existence:
  
  Use transaction code SE37 to check if the function module exists in the system. If it does not exist, you may need to create it or transport it from another system.
  
  
  
  Correct Naming:
  
  Review the code or configuration that is calling the function module to ensure that the name is spelled correctly and matches the actual function module name.
  
  
  
  Transport Missing Objects:
  
  If the function module is part of a transport request that has not been imported, you may need to import the relevant transport request.
  
  
  
  Check for Version Compatibility:
  
  Verify that the function module is available in your current version of SAP. If it is not, you may need to find an alternative or update your system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 after the error occurs.
  
  
  
  Consult Documentation:
  
  Review SAP Notes or documentation related to the specific migration or upgrade process you are performing. There may be specific instructions or prerequisites that need to be followed.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes like SE37 (Function Builder), SE80 (Object Navigator), and ST22 (Dump Analysis) for troubleshooting.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.