How To Fix SLS_LO_GAF_EWB156 - Reference screen &1 does not exist in main program &2

SLS_LO_GAF_EWB156 - Overview

• Message type: E = Error

• Message class: SLS_LO_GAF_EWB - GAF Enh WB Msg for LO based FPM config sales UI

• Message number: 156

• Message text: Reference screen &1 does not exist in main program &2

Self-Explanatory Message

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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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SLS_LO_GAF_EWB156 - Details

• The SAP error message SLS_LO_GAF_EWB156 indicates that a reference screen specified in the program does not exist in the main program. This typically occurs in the context of screen navigation or when trying to access a specific screen that has not been defined or is not available in the program being executed.
  
  Cause:
  
  Missing Screen Definition: The screen you are trying to access has not been defined in the main program.
  Incorrect Program Reference: The program might be incorrectly referencing a screen from another program or module.
  Transport Issues: If the program or screen was recently transported from a development environment to a production environment, there may have been issues during the transport process.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain screens.
  
  
  Solution:
  
  Check Screen Definition: Verify that the screen number referenced in the error message exists in the main program. You can do this by checking the screen definitions