How To Fix SY478 - Session & was deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 478

• Message text: Session & was deleted

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?

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY478 - Session & was deleted ?

  The SAP error message SY478 ("Session & was deleted") typically occurs when a user session in SAP has been terminated or deleted unexpectedly. This can happen for various reasons, including:
  Causes:
  
  User Action: The user may have manually deleted the session.
  Timeout: The session may have timed out due to inactivity.
  System Administration: An administrator may have deleted the session for maintenance or troubleshooting purposes.
  Network Issues: Connectivity problems can lead to session termination.
  System Errors: Unexpected system errors or crashes can also result in session deletion.
  
  Solutions:
  
  Reopen the Session: If the session was closed accidentally, you can try to reopen it or start a new session.
  Check for Timeouts: If the session was deleted due to inactivity, consider adjusting the timeout settings in the SAP system to allow for longer sessions.
  Review System Logs: Check the system logs (transaction SM21) for any related errors or messages that might provide more context on why the session was deleted.
  Network Stability: Ensure that your network connection is stable to prevent unexpected session terminations.
  Contact Administrator: If you suspect that the session was deleted by an administrator or due to system maintenance, contact your SAP system administrator for clarification.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SM21 (System Log) to check for any relevant logs or errors.
  User Sessions: You can monitor user sessions using transaction code SM04, which provides information about active user sessions.
  SAP Notes: Check SAP Notes for any known issues or patches related to session management and stability.
  
  If the problem persists or if you encounter this error frequently, it may be beneficial to consult with your SAP Basis team or support for further investigation and resolution.