How To Fix CNV_DMC_MC_EXCEPTION171 - &1-&2: Source structure &3 is not mapped to the target structure &4

CNV_DMC_MC_EXCEPTION171 - Overview

• Message type: E = Error

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

• Message number: 171

• Message text: &1-&2: Source structure &3 is not mapped to the target structure &4

Self-Explanatory Message

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CNV_DMC_MC_EXCEPTION171 - Details

• The SAP error message CNV_DMC_MC_EXCEPTION171 typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there is a mismatch between the source structure and the target structure in the data mapping configuration.
  
  Cause:
  The error message CNV_DMC_MC_EXCEPTION171 is triggered when:
  
  Unmapped Fields: Certain fields in the source structure are not mapped to any corresponding fields in the target structure.
  Incorrect Mapping Configuration: The mapping configuration may be incomplete or incorrect, leading to discrepancies between the source and target data models.
  Changes in Data Model: If there have been changes in the source or target data models after the mapping was initially set up, it could lead to this error.
  Data Migration Template Issues: The data migration template may not have been properly configured to include all necessary mappings.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mapping Configuration:
  
  Go to the data migration project in