How To Fix CNV_10020662 - &1 &2: Specific subprogram &3(&4) does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 662

• Message text: &1 &2: Specific subprogram &3(&4) 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_10020662 - &1 &2: Specific subprogram &3(&4) does not exist ?

  The SAP error message CNV_10020662 typically indicates that a specific subprogram or function module that the system is trying to call does not exist in the current context. This error is often encountered during data migration or conversion processes, particularly when using SAP's Data Migration tools or during system upgrades.
  Cause:
  
  Missing Function Module: The specified function module or subprogram is not available in the system. This could be due to a missing transport, an incomplete installation, or a version mismatch.
  Incorrect Configuration: The configuration settings may point to a non-existent or incorrectly named subprogram.
  Custom Development: If the subprogram is part of a custom development, it may not have been transported correctly to the target system.
  Version Compatibility: The error may arise if the system is not compatible with the version of the software or the data migration tool being used.
  
  Solution:
  
  Check for Existence: Verify if the specified function module or subprogram exists in the system. You can do this by using transaction SE37 (Function Builder) or SE80 (Object Navigator).
  Transport Issues: If the function module is part of a transport request, ensure that the transport has been imported successfully into the target system.
  Correct Configuration: Review the configuration settings to ensure that they are pointing to the correct subprogram. This may involve checking the settings in the relevant customizing transactions.
  Custom Code Review: If the subprogram is custom, ensure that it has been developed and activated in the system. Check for any syntax errors or activation issues.
  System Upgrade: If the error occurs after a system upgrade, ensure that all necessary components and add-ons have been updated and are compatible with the new version.
  Consult Documentation: Refer to SAP Notes or documentation related to the specific migration or conversion process you are performing. There may be specific instructions or prerequisites that need to be followed.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. You can search for the error message number or related keywords in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE37, SE80, and ST22 (Dump Analysis) to troubleshoot further.
  Logs and Dumps: Review system logs and short dumps (using transaction ST22) for additional context or related errors that may provide more insight into the issue.
  
  If the problem persists after following these steps, consider reaching out to SAP support or your internal SAP team for further assistance.