How To Fix REPP123 - Internal error: Field type &1 unknown.

SAP Error Message - Details

• Message type: E = Error

• Message class: REPP - Reporting CO-OM : User-Specific Reporting Parameters

• Message number: 123

• Message text: Internal error: Field type &1 unknown.

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message REPP123 - Internal error: Field type &1 unknown. ?

  The SAP error message REPP123 "Internal error: Field type &1 unknown" typically indicates that there is an issue with the data field type being processed in a report or program. This error can occur in various contexts, such as during report generation, data extraction, or when executing certain transactions.
  Causes:
  
  Invalid Field Type: The field type specified in the report or program is not recognized by the SAP system. This could be due to a typo, a missing data dictionary entry, or an unsupported field type.
  Custom Development Issues: If the report or program has been customized, there may be errors in the custom code that lead to the system not recognizing certain field types.
  Data Dictionary Changes: Changes in the data dictionary (e.g., changes to table structures or field definitions) that have not been properly propagated to the report or program.
  Version Compatibility: The error may arise if the report is being run in a different version of SAP than it was developed for, leading to discrepancies in field definitions.
  
  Solutions:
  
  Check Field Definitions: Verify the field definitions in the data dictionary (transaction SE11) to ensure that the field type being referenced exists and is correctly defined.
  Review Custom Code: If the error occurs in a custom report or program, review the code for any references to field types. Ensure that all field types are valid and correctly implemented.
  Debugging: Use the ABAP debugger to trace the execution of the report or program to identify where the error occurs. This can help pinpoint the specific field causing the issue.
  Update or Recompile: If the report or program has been modified, try recompiling it to ensure that all changes are recognized by the system.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE38 (ABAP Editor), SE80 (Object Navigator).
  Debugging Tools: Use transaction SE80 or SE38 to access the program and debug it.
  SAP Notes: Search for specific SAP Notes related to REPP123 or similar error messages in the SAP Support Portal.
  
  By following these steps, you should be able to identify and resolve the cause of the REPP123 error in your SAP environment.