How To Fix /SMB/CONT_RESTRUCT027 - No source key field mapped to target key field &1 of file &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/CONT_RESTRUCT -

• Message number: 027

• Message text: No source key field mapped to target key field &1 of file &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/CONT_RESTRUCT027 - No source key field mapped to target key field &1 of file &2 ?

  The SAP error message /SMB/CONT_RESTRUCT027 No source key field mapped to target key field &1 of file &2 typically occurs during data migration or transformation processes, particularly when using the SAP Data Migration or SAP BusinessObjects Data Services (BODS). This error indicates that there is a mismatch in the mapping of key fields between the source and target data structures.
  Cause:
  
  Missing Mapping: The key field in the target structure does not have a corresponding source key field mapped to it.
  Incorrect Configuration: The mapping configuration may be incorrect or incomplete, leading to the absence of a source key field for the specified target key field.
  Data Structure Changes: Changes in the data structure of either the source or target can lead to mismatches in expected key fields.
  File Format Issues: If the data is being imported from a file, the file may not be formatted correctly, or the expected key fields may not be present.
  
  Solution:
  
  
  Check Mapping Configuration:
  
  Go to the mapping configuration in your data migration tool (e.g., SAP Data Services).
  Ensure that all target key fields have corresponding source key fields mapped correctly.
  
  
  
  Review Data Structures:
  
  Verify the data structures of both the source and target to ensure that the key fields are defined and available.
  If there have been recent changes to the data model, update the mappings accordingly.
  
  
  
  Update the Mapping:
  
  If a key field is missing, add the appropriate source key field to the mapping for the target key field indicated in the error message.
  
  
  
  Validate Input Files:
  
  If the data is being loaded from a file, check the file to ensure that it contains all necessary key fields and that they are correctly formatted.
  
  
  
  Test the Mapping:
  
  After making changes, run a test migration to ensure that the error is resolved and that data is being mapped correctly.
  
  
  
  Related Information:
  
  Documentation: Refer to the SAP documentation for the specific data migration tool you are using for detailed instructions on mapping and data structure requirements.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to this error message.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error and ensure that your data migration or transformation process runs smoothly.