How To Fix CNV_DMC_MC_EXCEPTION128 - Function not available for standard rules

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 128

• Message text: Function not available for standard rules

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_DMC_MC_EXCEPTION128 - Function not available for standard rules ?

  The SAP error message "CNV_DMC_MC_EXCEPTION128 Function not available for standard rules" typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or related tools. This error indicates that a specific function or operation is not available for the standard rules defined in the migration project.
  Cause:
  
  
  Unsupported Functionality: The error may arise when trying to use a function that is not supported for the standard migration rules. This can happen if the migration scenario requires custom logic or if the standard rules do not cover the specific data transformation or mapping needed.
  
  
  Configuration Issues: There may be misconfigurations in the migration project settings or the rules defined for the data migration.
  
  
  Version Compatibility: The error could also be related to compatibility issues between the version of the SAP system you are using and the migration tools or rules.
  
  
  Solution:
  
  
  Review Migration Rules: Check the migration rules you are using. Ensure that they are appropriate for the data you are trying to migrate. If necessary, consider creating custom rules that can handle the specific requirements of your data.
  
  
  Custom Logic: If the standard rules do not meet your needs, you may need to implement custom logic or enhancements. This could involve writing custom transformation logic in ABAP or using other tools to handle the data transformation.
  
  
  Check Documentation: Refer to the official SAP documentation for the Data Migration Cockpit and the specific migration scenario you are working on. This can provide insights into supported functions and any limitations.
  
  
  Update SAP System: Ensure that your SAP system is up to date with the latest patches and updates. Sometimes, newer versions of the software may include additional functionalities or fixes for known issues.
  
  
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific details of your migration project and the error encountered.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues. They can provide insights or workarounds that have worked for them.
  Training and Documentation: Consider reviewing training materials or documentation related to the SAP Data Migration Cockpit to better understand its capabilities and limitations.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.