How To Fix DBOSC330 - Error while evaluating expression; referenced screen &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: DBOSC -

• Message number: 330

• Message text: Error while evaluating expression; referenced screen &1 not found

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 DBOSC330 - Error while evaluating expression; referenced screen &1 not found ?

  The SAP error message DBOSC330 indicates that there is an issue with a screen reference in your SAP application. Specifically, the error message states: "Error while evaluating expression; referenced screen &1 not found." This typically occurs when the system is trying to access a screen that does not exist or is not properly defined in the context of the program or transaction being executed.
  Causes:
  
  Missing Screen Definition: The screen that is being referenced in the program does not exist in the system.
  Incorrect Screen Number: The screen number referenced in the code may be incorrect or misspelled.
  Program Changes: If the program has been modified recently, it may have removed or altered the screen definitions.
  Transport Issues: If the program was transported from one environment to another (e.g., from development to production), the screen definitions may not have been included in the transport.
  Authorization Issues: The user may not have the necessary authorizations to access the screen.
  
  Solutions:
  
  Check Screen Definition: Verify that the screen number referenced in the program exists. You can do this by checking the screen definitions in the ABAP Workbench (transaction SE80 or SE38).
  Correct Screen Reference: If the screen number is incorrect, update the program code to reference the correct screen.
  Review Program Changes: If there have been recent changes to the program, review those changes to ensure that the screen definitions are still valid.
  Transport Check: If the issue arose after a transport, check the transport logs to ensure that all necessary objects, including screen definitions, were included in the transport.
  Authorization Check: Ensure that the user has the necessary authorizations to access the screen. You can check this in transaction SU53 or by reviewing the user's roles and authorizations.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE38 (ABAP Editor) to investigate the program and screen definitions.
  Debugging: If you are unable to identify the issue, consider using the debugger to step through the program and see where the error occurs.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the DBOSC330 error and implement a solution to resolve it.