How To Fix FDM_MIRROR122 - Internal error: field &1 is not contained in table/structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDM_MIRROR - Mirror System Messages

• Message number: 122

• Message text: Internal error: field &1 is not contained in table/structure &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDM_MIRROR122 - Internal error: field &1 is not contained in table/structure &2 ?

  The SAP error message FDM_MIRROR122 indicates that there is an internal error where a specific field (denoted as &1) is not found in the specified table or structure (denoted as &2). This error typically arises in the context of data migration or data transfer processes, particularly when using the Financial Data Migration (FDM) tool in SAP.
  Cause:
  
  Field Mismatch: The field specified in the error message does not exist in the target table or structure. This could be due to a typo, a change in the data model, or an incorrect mapping configuration.
  Data Model Changes: If there have been recent changes to the data model (e.g., fields added or removed), the mapping may not be updated accordingly.
  Configuration Issues: Incorrect configuration in the FDM tool or the data migration process can lead to this error.
  Version Compatibility: If you are using a version of the FDM tool that is not compatible with the current SAP version, it may lead to such errors.
  
  Solution:
  
  Check Field Existence: Verify that the field &1 exists in the specified table/structure &2. You can do this by using transaction codes like SE11 (Data Dictionary) to check the structure of the table.
  Review Mapping Configuration: Go through the mapping configuration in the FDM tool to ensure that all fields are correctly mapped and that there are no discrepancies.
  Update Data Model: If there have been changes to the data model, ensure that the FDM configuration is updated to reflect these changes.
  Consult Documentation: Refer to the SAP documentation for the FDM tool to ensure that you are following the correct procedures and that your configurations are in line with the expected setup.
  Check for Notes and Patches: Look for any SAP Notes or patches that may address this specific error. Sometimes, SAP releases updates that fix known issues.
  Debugging: If you have access to debugging tools, you can trace the execution to identify where the error is occurring and gather more context about the issue.
  
  Related Information:
  
  SAP Notes: Search the SAP Support Portal for any relevant notes that might provide additional context or solutions for this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Documentation: Review the official SAP documentation for the Financial Data Migration tool for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.