How To Fix CNV_DMC_MC_EXCEPTION150 - Select a rule proposal for field &1 of target structure &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 150

• Message text: Select a rule proposal for field &1 of target structure &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION150 - Select a rule proposal for field &1 of target structure &2 ?

  The SAP error message CNV_DMC_MC_EXCEPTION150 typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC). This error indicates that there is an issue with the mapping of fields from the source structure to the target structure in the migration process. Specifically, it suggests that a rule proposal for a specific field in the target structure has not been selected.
  Cause:
  
  Missing Rule Proposal: The error arises when there is no rule proposal selected for a specific field in the target structure. This can happen if the mapping configuration is incomplete or if the necessary transformation rules have not been defined.
  Field Mapping Issues: There may be discrepancies between the source and target structures, such as missing fields or incompatible data types.
  Configuration Errors: Incorrect configuration in the migration cockpit or in the data migration project can lead to this error.
  
  Solution:
  
  
  Select a Rule Proposal:
  
  Go to the Data Migration Cockpit and navigate to the mapping section.
  Locate the target structure and the specific field indicated in the error message.
  Ensure that a valid rule proposal is selected for that field. If none exists, you may need to create a new rule proposal that defines how data should be transformed for that field.
  
  
  
  Review Field Mappings:
  
  Check the mapping between the source and target structures to ensure that all necessary fields are correctly mapped.
  Verify that the data types and formats are compatible between the source and target fields.
  
  
  
  Define Transformation Rules:
  
  If there are no existing transformation rules, you may need to define them based on the business requirements for the data being migrated.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the Data Migration Cockpit for detailed guidance on setting up mappings and transformation rules.
  
  
  
  Testing:
  
  After making the necessary adjustments, run a test migration to ensure that the error has been resolved and that data is being migrated correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Resources: Consider reviewing training materials or resources related to the SAP Data Migration Cockpit to better understand how to configure mappings and transformations effectively.
  
  By following these steps, you should be able to resolve the CNV_DMC_MC_EXCEPTION150 error and successfully complete your data migration process.