How To Fix CNV_DMC_MC_EXCEPTION111 - Domain &1 is already assigned to rule &2 (visibility &3)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 111

• Message text: Domain &1 is already assigned to rule &2 (visibility &3)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION111 - Domain &1 is already assigned to rule &2 (visibility &3) ?

  The SAP error message CNV_DMC_MC_EXCEPTION111 indicates that there is an issue with the assignment of a domain to a specific rule in the context of a data migration or conversion process. This error typically arises in the Data Migration Cockpit (DMC) when a domain is already assigned to a different rule, which can lead to conflicts in the data migration process.
  Cause:
  
  Domain Assignment Conflict: The domain specified in the error message is already associated with another rule. In SAP, domains define the technical attributes of fields, and each domain can only be assigned to one rule at a time.
  Configuration Issues: There may be misconfigurations in the data migration setup, where the same domain is inadvertently being referenced multiple times across different rules.
  Data Model Changes: Changes in the data model or migration rules may have led to overlapping assignments that were not properly managed.
  
  Solution:
  
  Review Domain Assignments: Check the assignments of the domain mentioned in the error message. Ensure that it is not assigned to multiple rules. You can do this by navigating to the relevant configuration settings in the DMC.
  Modify Rule Assignments: If the domain is indeed assigned to another rule, you will need to either:
  
  Reassign the domain to the correct rule.
  Create a new domain if the existing one cannot be reused.
  
  
  Check for Duplicates: Ensure that there are no duplicate rules or configurations that might be causing the conflict.
  Consult Documentation: Refer to the SAP documentation for the Data Migration Cockpit for specific guidelines on domain and rule assignments.
  Testing: After making changes, test the migration process again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  DMC Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, providing insights or solutions from other users.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have already taken.