How To Fix TPDA623 - No debug session was selected

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 623

• Message text: No debug session was selected

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 TPDA623 - No debug session was selected ?

  The SAP error message TPDA623: No debug session was selected typically occurs when you are trying to debug an ABAP program or transaction in the SAP system, but there is no active debug session available. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  No Debugging Session Started: You may not have started a debugging session before trying to debug the program.
  Session Timeout: The debugging session may have timed out or been terminated.
  Incorrect Debugging Mode: You might be trying to debug in a mode that does not support debugging (e.g., background processing).
  User Authorization: The user may not have the necessary authorizations to start or access a debugging session.
  System Configuration: There may be system settings or configurations that prevent debugging.
  
  Solutions:
  
  
  Start a Debugging Session:
  
  Ensure that you start the debugging session correctly. You can do this by using transaction SE80 or SE38 to execute the program in debug mode. You can set breakpoints in the code and then run the program.
  Use the command /h in the command field before executing the transaction or program to enable debugging.
  
  
  
  Check for Active Sessions:
  
  If you are already in a debugging session, ensure that it is still active. You can check the list of active sessions in the SAP GUI.
  
  
  
  Re-login:
  
  If the session has timed out, log out and log back into the SAP system to start a new debugging session.
  
  
  
  Check Authorizations:
  
  Ensure that your user profile has the necessary authorizations to debug programs. You may need to contact your SAP security administrator to verify your permissions.
  
  
  
  Review System Settings:
  
  Check if there are any system-wide settings that might restrict debugging. This could include settings in the SAP kernel or specific configurations in the system.
  
  
  
  Use the Correct Environment:
  
  Make sure you are not trying to debug a program that is running in the background or in a mode that does not support debugging.
  
  
  
  Related Information:
  
  Debugging in SAP: Familiarize yourself with the debugging tools available in SAP, such as the ABAP Debugger, and how to set breakpoints, watchpoints, and analyze variable values.
  SAP Notes: Check SAP Notes for any known issues related to debugging and the specific error message TPDA623. SAP Notes can provide patches or additional guidance.
  Documentation: Refer to the official SAP documentation for debugging techniques and best practices.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis or development team for further assistance.