How To Fix DMC_GENERAL266 - Column header of field &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 266

• Message text: Column header of field &1 not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL266 - Column header of field &1 not found ?

  The SAP error message DMC_GENERAL266, which states "Column header of field &1 not found," typically occurs in the context of data management or data migration processes, particularly when using tools like SAP Data Migration Cockpit or SAP Data Services. This error indicates that the system is unable to find the specified column header in the data source or target structure.
  Cause:
  
  Missing Column Header: The specified column header (field &1) does not exist in the source or target data structure.
  Typographical Error: There may be a typo in the column name specified in the mapping or configuration.
  Data Structure Changes: The data structure may have changed (e.g., fields added or removed) since the last configuration or mapping was set up.
  Incorrect Mapping: The mapping configuration may not correctly reference the existing fields in the source or target.
  Case Sensitivity: In some cases, the column names may be case-sensitive, leading to mismatches.
  
  Solution:
  
  Verify Column Names: Check the source and target data structures to ensure that the column header specified in the error message exists and is spelled correctly.
  Update Mapping: If there have been changes to the data structure, update the mapping configuration to reflect the current column names.
  Check for Typos: Review the mapping or configuration for any typographical errors in the column names.
  Review Data Model: If the data model has changed, ensure that the migration or data transfer process is aligned with the new model.
  Test with Sample Data: Run a test with a small sample of data to isolate the issue and confirm that the mapping works as expected.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific tool you are using (e.g., Data Migration Cockpit, Data Services).
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Logs and Traces: Review logs and traces generated during the data migration process for additional context on the error.
  Data Migration Cockpit: If using the Data Migration Cockpit, ensure that the migration template is correctly set up and that all required fields are included.
  
  By following these steps, you should be able to identify the cause of the DMC_GENERAL266 error and implement a solution to resolve it.