How To Fix CNV_10020666 - &1 &2: Specific function module &3 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 666

• Message text: &1 &2: Specific function module &3 does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020666 - &1 &2: Specific function module &3 does not exist ?

  The SAP error message CNV_10020666 indicates that a specific function module, referenced as &3, does not exist in the system. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of custom programs that rely on specific function modules.
  Cause:
  
  
  Missing Function Module: The function module that is being called in the program or migration process is not available in the SAP system. This could be due to:
  
  The function module was never created or activated.
  The function module was deleted or is in a transport that has not yet been imported.
  The function module is part of a specific SAP component or add-on that is not installed in the system.
  
  
  
  Incorrect Configuration: The system might be misconfigured, leading to the inability to locate the function module.
  
  
  Version Mismatch: The function module may exist in a different version of SAP or in a different client, leading to compatibility issues.
  
  
  Solution:
  
  
  Check Function Module Existence:
  
  Use transaction code SE37 (Function Builder) to check if the function module &3 exists in your system.
  If it does not exist, you may need to create it or ensure that the relevant transport containing the function module is imported.
  
  
  
  Import Missing Transports:
  
  If the function module is part of a transport request, ensure that the transport has been imported into your system.
  
  
  
  Check for Add-ons:
  
  If the function module is part of an SAP add-on or component, verify that the add-on is installed and properly configured.
  
  
  
  Review Custom Code:
  
  If the error arises from custom code, review the code to ensure that it is correctly referencing the function module and that the module is intended to be used in your environment.
  
  
  
  Consult Documentation:
  
  Check SAP Notes or documentation related to the specific migration or conversion process you are executing. There may be specific prerequisites or steps that need to be followed.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP Support for assistance, especially if this is a critical function for your business processes.
  
  
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SE80 (Object Navigator), ST22 (Dump Analysis), SM21 (System Log).
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on the function module in question.
  Documentation: Review the documentation for the specific migration tool or process you are using, as it may provide insights into required function modules and their configurations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.