How To Fix SY620 - Action not possible in SAP GUI for HTML. Use external debugging.

SY620 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 620

• Message text: Action not possible in SAP GUI for HTML. Use external debugging.

What causes this issue?

Direct debugging in SAP GUI for HTML using the classic debugger is no
longer supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use external debugging instead.
To do this, use ADT in Eclipse or SAP GUI for Windows and set external
breakpoints in the places where you want to start debugging. Then
restart the request that you want to debug.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

SY620 - Details

• The SAP error message SY620 ("Action not possible") typically indicates that a certain action or operation cannot be performed in the SAP GUI for HTML (Web GUI) environment. This error can arise due to various reasons, including configuration issues, authorization problems, or limitations of the Web GUI itself.
  Possible Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to perform the action.
  Web GUI Limitations: Certain functionalities available in the traditional SAP GUI may not be supported in the Web GUI.
  Session Timeout: The session may have timed out, leading to the inability to perform actions.
  
  Configuration Issues: There may be issues with the configuration of the Web GUI or the specific transaction being accessed.
  Browser Compatibility: The browser being used may not be fully compatible with the SAP Web GUI.
  
  Solutions:
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to perform the action. This can be checked in transaction SU53 after the error occurs