How To Fix /SAPAPO/TS301 - SimSession &1 deleted after opening or closing error

/SAPAPO/TS301 - Overview

• Message type: E = Error

• Message class: /SAPAPO/TS -

• Message number: 301

• Message text: SimSession &1 deleted after opening or closing error

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 /SAPAPO/TS301 - SimSession &1 deleted after opening or closing error ?

  The SAP error message /SAPAPO/TS301 SimSession &1 deleted after opening or closing typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with a simulation session. This error indicates that the simulation session identified by &1 has been deleted due to an error that occurred during its opening or closing.
  Causes:
  
  Session Timeout: The simulation session may have timed out due to inactivity.
  Database Locking Issues: There may be database locks that prevent the session from being opened or closed properly.
  User Authorization: The user may not have the necessary authorizations to access or manipulate the simulation session.
  System 
  Configuration Issues: There could be configuration issues in the APO system that affect session management.
  Network Issues: Connectivity problems between the client and the server can lead to session disruptions.
  Data Integrity Issues: Corrupted or inconsistent data in the session can lead to errors during processing.
  
  Solutions:
  
  Check Session Status: Verify if the