How To Fix LF109 - Failed to call screen

SAP Error Message - Details

• Message type: E = Error

• Message class: LF - Mobile Computing in Warehouse Logistics

• Message number: 109

• Message text: Failed to call screen

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message LF109 - Failed to call screen ?

  The SAP error message LF109: Failed to call screen typically occurs when there is an issue with the screen or transaction that the system is trying to access. This error can arise due to various reasons, including configuration issues, missing screen elements, or problems with the underlying program logic.
  Causes:
  
  Missing Screen Elements: The screen that the program is trying to call may not exist or may have been deleted.
  Incorrect Program Logic: There may be an issue in the ABAP code that prevents the screen from being called correctly.
  Authorization Issues: The user may not have the necessary authorizations to access the screen.
  Transaction Configuration: The transaction may not be configured correctly in the system.
  Screen Variants: If screen variants are used, they may not be set up properly.
  
  Solutions:
  
  Check Screen Existence: Verify that the screen number being called exists in the program. You can do this by checking the program in the ABAP Workbench (SE80 or SE38).
  Review ABAP Code: Look at the ABAP code to ensure that the logic for calling the screen is correct. Check for any conditional statements that might prevent the screen from being called.
  Authorization Check: Ensure that the user has the necessary authorizations to access the transaction and the associated screens.
  Transaction Configuration: Check the transaction configuration in transaction codes (SE93) to ensure that it is set up correctly.
  Debugging: Use the debugger to step through the program and identify where the error occurs. This can provide insights into what might be going wrong.
  Check for Screen Variants: If screen variants are being used, ensure they are correctly configured and available for the user.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE80 (Object Navigator) or SE38 (ABAP Editor) to investigate the program and screens.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further assistance.