How To Fix CNV_DMC_MC_EXCEPTION129 - No rule with this name exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 129

• Message text: No rule with this name exists

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION129 - No rule with this name exists ?

  The SAP error message CNV_DMC_MC_EXCEPTION129 with the description "No rule with this name exists" typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that the system is trying to reference a migration rule that has not been defined or is not available in the current context.
  Causes:
  
  Missing Migration Rule: The specified migration rule does not exist in the system. This could be due to a typo in the rule name or the rule not being created or activated.
  Incorrect Configuration: The configuration settings for the data migration might be incorrect, leading to the system looking for a non-existent rule.
  Transport Issues: If the migration rules were transported from another system, there might have been issues during the transport process, causing the rules to not be available.
  Version Mismatch: The version of the migration tool or the data model might not match the version where the rules were defined.
  
  Solutions:
  
  Verify Rule Name: Check the name of the migration rule being referenced in the error message. Ensure that it is spelled correctly and matches the name defined in the system.
  Create or Activate Rule: If the rule does not exist, you may need to create it or activate it if it is in a draft or inactive state.
  Check Configuration: Review the configuration settings in the Data Migration Cockpit to ensure that all necessary rules are correctly defined and linked.
  Transport Check: If the rules were supposed to be transported from another system, verify the transport logs for any errors and ensure that the transport was successful.
  Consult Documentation: Refer to the SAP documentation or guides related to the Data Migration Cockpit for specific instructions on how to define and manage migration rules.
  System Logs: Check the system logs for any additional error messages or warnings that might provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with the error details and any relevant logs.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.