How To Fix D-320 - Error: cannot assign mapped session ID

SAP Error Message - Details

• Message type: E = Error

• Message class: D- -

• Message number: 320

• Message text: Error: cannot assign mapped session ID

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message D-320 - Error: cannot assign mapped session ID ?

  The SAP error message D-320, which states "Error: cannot assign mapped session ID," typically occurs in the context of SAP GUI or when dealing with session management in SAP systems. This error can arise due to various reasons, including issues with session handling, user authorizations, or system configuration.
  Causes:
  
  Session Limit Exceeded: The user may have reached the maximum number of allowed sessions in the SAP system.
  Session ID Conflicts: There may be conflicts with session IDs, especially if multiple sessions are being opened simultaneously.
  User Authorizations: The user may not have the necessary authorizations to create or manage sessions.
  System Configuration Issues: There could be misconfigurations in the SAP system settings related to session management.
  Network Issues: Connectivity problems between the SAP GUI and the application server can also lead to session management errors.
  
  Solutions:
  
  
  Check Session Limits: Verify the maximum number of sessions allowed for the user in the SAP system. This can be checked in the user profile settings (transaction code SU01).
  
  If the limit is reached, consider closing some sessions or increasing the limit if appropriate.
  
  
  
  Clear Sessions: If there are orphaned or inactive sessions, they can be cleared. This can be done by:
  
  Logging out of all sessions.
  Using transaction code SM04 to monitor and manage user sessions.
  
  
  
  Review Authorizations: Ensure that the user has the necessary authorizations to create and manage sessions. This can be checked in transaction SU01 or by consulting with a security administrator.
  
  
  Check System Configuration: Review the system settings related to session management. This may involve checking parameters in transaction RZ10 or consulting with a Basis administrator.
  
  
  Network Troubleshooting: If network issues are suspected, check the connectivity between the SAP GUI and the application server. This may involve checking firewall settings, network configurations, or server availability.
  
  
  Restart SAP GUI: Sometimes, simply restarting the SAP GUI can resolve temporary issues related to session management.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. You can search for relevant notes in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with transaction codes like SU01 (User Maintenance), SM04 (User Overview), and RZ10 (Profile Maintenance) for managing user sessions and configurations.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.