How To Fix CNV_DMC_MC_EXCEPTION023 - An event rule with this name already exists at migration object level

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 023

• Message text: An event rule with this name already exists at migration object level

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION023 - An event rule with this name already exists at migration object level ?

  The SAP error message CNV_DMC_MC_EXCEPTION023 indicates that there is a conflict due to the existence of an event rule with the same name at the migration object level during a data migration process using the SAP Data Migration Cockpit (DMC). This typically occurs when you are trying to create or modify an event rule that already exists, leading to a duplication issue.
  Cause:
  
  Duplicate Event Rule: The primary cause of this error is that an event rule with the same name already exists in the migration object. This can happen if:
  
  You are trying to create a new event rule with a name that has already been used.
  There was a previous migration attempt that created the event rule, and you are trying to create it again without deleting or modifying the existing one.
  
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Event Rules:
  
  Navigate to the migration object in the SAP Data Migration Cockpit.
  Look for existing event rules and check if the one you are trying to create already exists.
  
  
  
  Rename the New Event Rule:
  
  If you need to create a new event rule, consider renaming it to avoid the conflict with the existing one.
  
  
  
  Modify or Delete Existing Event Rule:
  
  If the existing event rule is no longer needed, you can delete it.
  If you need to keep the existing event rule, consider modifying it instead of creating a new one.
  
  
  
  Review Migration Object Configuration:
  
  Ensure that the configuration of your migration object is correct and that there are no unintended duplications in the event rules.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or help resources for specific guidelines on managing event rules within the Data Migration Cockpit.
  
  
  
  Related Information:
  
  SAP Notes: Check for any 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.
  Data Migration Cockpit: Familiarize yourself with the features and functionalities of the SAP Data Migration Cockpit, as understanding how event rules work can help prevent such issues in the future.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC_EXCEPTION023 error and proceed with your data migration tasks.