How To Fix APPLG402 - MUX: Graphics proxy already registered

APPLG402 - Overview

• Message type: E = Error

• Message class: APPLG - Application Graphics Messages (Graphic Proxy Framework)

• Message number: 402

• Message text: MUX: Graphics proxy already registered

What causes this issue?

A graphics proxy attempted to register a second time.

How to fix this error?

Check the implementation or the graphics proxy's call method.

Error message extract from SAP system. Copyright SAP SE.

APPLG402 - Details

• The SAP error message APPLG402 MUX: Graphics proxy already registered typically occurs in the context of SAP GUI or when dealing with graphical applications in SAP. This error indicates that there is an attempt to register a graphics proxy that has already been registered, leading to a conflict.
  Causes:
  
  Multiple Instances: The error can occur if multiple instances of the same application or session are trying to register the graphics proxy simultaneously.
  Session Management Issues: If the session management is not handled properly, it can lead to the same proxy being registered multiple times.
  
  Configuration Issues: Incorrect configuration settings in the SAP system or the client can lead to this error.
  Software Bugs: There may be bugs in the SAP GUI or the application that cause this issue.
  
  Solutions:
  
  Restart the Application: Close all instances of the SAP GUI and restart the application. This can help clear any lingering sessions or proxies.
  Check for Multiple Sessions: Ensure that