How To Fix CNV_DMC_MC_EXCEPTION069 - Attribute &1 of class &2 is unknown.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 069

• Message text: Attribute &1 of class &2 is unknown.

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_EXCEPTION069 - Attribute &1 of class &2 is unknown. ?

  The SAP error message CNV_DMC_MC_EXCEPTION069 indicates that there is an issue with an attribute of a class that is not recognized or is unknown in the context of a data migration or conversion process. This error typically arises during the execution of the Data Migration Cockpit (DMC) or during a migration project using SAP's tools.
  Cause:
  
  Missing or Incorrect Mapping: The attribute specified in the error message may not be correctly mapped in the migration project. This could be due to a typo, a missing entry, or an incorrect configuration.
  Data Model Changes: If there have been changes to the data model (e.g., updates in the source or target system), attributes that were previously valid may no longer exist or may have been renamed.
  Configuration Issues: The migration configuration might not be set up correctly, leading to the system not recognizing certain attributes.
  Version Compatibility: The error may also arise if there is a version mismatch between the source and target systems or if the migration tool is not compatible with the current system version.
  
  Solution:
  
  Check Attribute Mapping: Review the mapping of attributes in the migration project. Ensure that the attribute mentioned in the error message is correctly defined and mapped.
  Validate Data Model: Verify the data model in both the source and target systems to ensure that the attribute exists and is correctly defined. If there have been changes, update the migration project accordingly.
  Review Configuration: Go through the configuration settings of the Data Migration Cockpit to ensure that all necessary settings are correctly defined.
  Consult Documentation: Refer to the SAP documentation for the Data Migration Cockpit and the specific migration project you are working on. This may provide insights into any known issues or additional configuration steps required.
  Check for Updates: Ensure that you are using the latest version of the migration tools and that your systems are up to date. Sometimes, applying the latest patches can resolve compatibility issues.
  Error Logs: Check the error logs for more detailed information about the error. This can provide additional context that may help in troubleshooting.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit and any specific migration scenarios you are working on.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.