How To Fix CNV_CDMC_CA108 - & unique domains exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CA - CDMC Clearing Analysis

• Message number: 108

• Message text: & unique domains exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CA108 - & unique domains exist ?

  The SAP error message CNV_CDMC_CA108 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Conversion or Data Migration Cockpit. The specific message about "unique domains exist" indicates that there are conflicts with unique constraints or domains in the data being processed.
  Cause:
  
  
  Unique Constraints Violation: The error usually arises when the data being migrated contains duplicate values for fields that are supposed to be unique. This can happen if the source system has inconsistencies or if the mapping of data does not account for existing unique constraints in the target system.
  
  
  Domain Conflicts: If the data being migrated includes fields that are defined with unique domains in the target system, and the incoming data violates these constraints, the error will be triggered.
  
  
  Data Quality Issues: Poor data quality in the source system can lead to duplicates or invalid entries that conflict with the unique constraints in the target system.
  
  
  Solution:
  
  
  Data Cleansing: Before migration, perform a thorough data cleansing process to identify and resolve duplicates in the source data. This may involve:
  
  Identifying duplicate records.
  Merging or deleting duplicates as appropriate.
  Ensuring that all records comply with the unique constraints of the target system.
  
  
  
  Review Mapping and Transformation Rules: Check the mapping and transformation rules defined in the migration process. Ensure that they correctly handle unique fields and that the data being migrated adheres to the constraints of the target system.
  
  
  Adjust Unique Constraints: If feasible, consider temporarily relaxing unique constraints in the target system during the migration process, and then reapplying them after the data has been successfully migrated and validated.
  
  
  Use Migration Tools: Utilize SAP's migration tools effectively, such as the SAP S/4HANA Migration Cockpit, which can help identify potential issues before the actual migration takes place.
  
  
  Testing: Conduct thorough testing in a sandbox or development environment to identify and resolve issues before performing the migration in the production environment.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to the CNV_CDMC_CA108 error.
  Documentation: Review the official SAP documentation for the migration tools being used, as they often contain best practices and troubleshooting tips.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By addressing the underlying causes of the CNV_CDMC_CA108 error and ensuring data quality, you can facilitate a smoother migration process.