How To Fix SY477 - Session & was loaded

SAP Error Message - Details

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 477

• Message text: Session & was loaded

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.

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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 SY477 - Session & was loaded ?

  The SAP error message SY477 typically indicates that a session has been loaded, but it is not currently available for processing. This can occur in various scenarios, often related to issues with session management in SAP.
  Cause:
  
  Session Management Issues: The session may have been terminated or is in a state that prevents it from being processed.
  User Lock: The user may be locked or the session may be associated with a user who is no longer active.
  Technical Errors: There may be underlying technical issues, such as database connectivity problems or system resource limitations.
  Session Timeout: The session may have timed out due to inactivity.
  
  Solution:
  
  Check Session Status: Use transaction code SM04 to check the status of user sessions. You can identify if the session is still active or if it has been terminated.
  Re-login: If the session is inactive or has timed out, logging out and logging back in may resolve the issue.
  Session Management: Ensure that sessions are being managed properly. You can use transaction SM37 to monitor background jobs and sessions.
  Clear Sessions: If there are too many sessions, consider clearing unnecessary sessions using transaction SM21 to check logs and SM12 to delete any locked entries.
  Check User Locks: Use transaction SU01 to check if the user is locked and unlock if necessary.
  System Resources: Ensure that the system has adequate resources (memory, CPU) to handle the sessions. Check system performance using transaction ST02 or ST03N.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to session management and error SY477 for any specific patches or updates that may address the issue.
  Documentation: Review SAP documentation on session management and error handling for best practices.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages.
  
  By following these steps, you should be able to diagnose and resolve the SY477 error in your SAP environment.