How To Fix CMPERS123 - Internal error: No conversion exit stored for screen &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CMPERS - Personalization for Web Applications

• Message number: 123

• Message text: Internal error: No conversion exit stored for screen &1

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 CMPERS123 - Internal error: No conversion exit stored for screen &1 ?

  The SAP error message CMPERS123, which states "Internal error: No conversion exit stored for screen &1," typically occurs in the context of SAP's personnel administration or related modules. This error indicates that the system is unable to find a conversion exit for a specific field on a screen, which is necessary for converting data between different formats (e.g., from internal to external representation).
  Causes:
  
  Missing Conversion Exit: The most common cause is that the conversion exit for the specified field is not defined in the system. This can happen if the field is custom or if there is a configuration issue.
  Incorrect Field Definition: The field may not be correctly defined in the data dictionary or the screen.
  Custom Development: If there are custom screens or enhancements, they may not have the necessary conversion exits implemented.
  Transport Issues: If the system has recently undergone a transport of changes, the conversion exit may not have been included or activated properly.
  
  Solutions:
  
  Check Field Definition: Verify the field definition in the data dictionary (transaction SE11) to ensure that the conversion exit is correctly defined.
  Define Conversion Exit: If the conversion exit is missing, you may need to create it. This can be done using transaction SE11 or SE37 (for function modules).
  Review Custom Code: If the error is occurring in a custom program or enhancement, review the code to ensure that it correctly references the conversion exit.
  Check Screen Configuration: Use transaction SE80 to check the screen configuration and ensure that the field is properly linked to its conversion exit.
  Transport Requests: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included and activated in the target system.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Module), SE38 (ABAP Editor).
  SAP Documentation: Review SAP Help documentation for information on conversion exits and field definitions.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further investigation.