How To Fix CNV_OM_MWBGEN100 - DMC modify error

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_MWBGEN - SLO: Messages for Object Based MBW Generation

• Message number: 100

• Message text: DMC modify error

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_MWBGEN100 - DMC modify error ?

  The SAP error message CNV_OM_MWBGEN100 typically occurs during the data migration process, particularly when using the Data Migration Cockpit (DMC) in SAP S/4HANA. This error indicates that there is a problem with modifying the data migration objects or the mapping of the data.
  Causes:
  
  Data Mapping Issues: The error may arise due to incorrect or incomplete mapping of fields in the migration object.
  Configuration Errors: There may be configuration issues in the DMC or the source/target systems that prevent the modification of the migration object.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to modify the migration objects.
  Technical Errors: There could be underlying technical issues, such as database locks or inconsistencies in the data model.
  
  Solutions:
  
  Check Data Mapping: Review the mapping of fields in the migration object to ensure that all required fields are correctly mapped and that there are no discrepancies.
  Review Configuration: Ensure that the DMC is properly configured and that all necessary settings are in place for the migration process.
  User Authorizations: Verify that the user has the appropriate authorizations to perform modifications in the DMC. If not, request the necessary permissions from your SAP security team.
  Check for Locks: Investigate if there are any database locks or other technical issues that might be causing the error. You can use transaction codes like SM12 to check for locks.
  Consult Logs: Look at the detailed logs for the migration process to identify any specific errors or warnings that could provide more context about the issue.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for detailed guidelines on data migration processes.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Support Tickets: If the issue persists, consider raising a support ticket with SAP for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the CNV_OM_MWBGEN100 error effectively.