How To Fix 00135 - Maximum number of sessions reached in the system

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 135

• Message text: Maximum number of sessions reached in the system

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00135 - Maximum number of sessions reached in the system ?

  The SAP error message "00135 Maximum number of sessions reached in the system" indicates that the maximum number of user sessions allowed in the SAP system has been reached. This can prevent new users from logging in or creating new sessions, which can disrupt business operations.
  Cause:
  
  Session Limit Reached: Each SAP system has a predefined limit on the number of concurrent user sessions. When this limit is reached, no additional sessions can be created.
  Long-Running Sessions: Users may have sessions that are open for an extended period without being used, which can contribute to reaching the session limit.
  Configuration Settings: The session limit is defined in the system configuration, and it may be set too low for the current user load.
  System Performance Issues: If the system is experiencing performance issues, it may not be able to handle the number of sessions effectively.
  
  Solution:
  
  
  Increase Session Limit:
  
  You can increase the maximum number of sessions allowed in the system by adjusting the profile parameters. This is typically done in the instance profile (e.g., rdisp/max_wprun_time, rdisp/wp_no, etc.).
  Use transaction RZ10 to modify the instance profile parameters. Look for parameters like rdisp/max_user_sessions and increase its value.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Monitor and Close Idle Sessions:
  
  Use transaction SM04 (User Overview) to monitor active user sessions. Identify and log off users with idle sessions.
  You can also use transaction SM50 (Work Process Overview) to check for long-running processes that may be holding sessions.
  
  
  
  User Education:
  
  Educate users about logging off when they are done with their tasks to free up sessions for others.
  
  
  
  System Performance Tuning:
  
  Investigate and resolve any underlying performance issues that may be affecting the system's ability to handle sessions.
  
  
  
  Session Management:
  
  Implement session management policies to limit the number of sessions per user if necessary.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to session management.
  System Monitoring: Regularly monitor system performance and user sessions to proactively manage session limits.
  Documentation: Refer to SAP documentation for detailed information on configuring user sessions and performance tuning.
  
  By addressing the session limit and managing user sessions effectively, you can resolve the error and improve the overall performance of the SAP system.