How To Fix D-326 - A different (mapped) session ID in the target system is required

SAP Error Message - Details

• Message type: E = Error

• Message class: D- -

• Message number: 326

• Message text: A different (mapped) session ID in the target system is required

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D-326 - A different (mapped) session ID in the target system is required ?

  The SAP error message D-326, which states "A different (mapped) session ID in the target system is required," typically occurs in the context of SAP systems that are using session management, particularly in scenarios involving remote function calls (RFC) or when integrating with other systems.
  Cause:
  This error usually arises when there is a mismatch between the session ID expected by the target system and the session ID being used in the current context. This can happen due to several reasons, including:
  
  Session ID Mismatch: The session ID that the source system is trying to use is not recognized or is already in use in the target system.
  Configuration Issues: Incorrect configuration in the RFC destination or in the session management settings.
  Network Issues: Problems in the network that may cause session IDs to not be properly synchronized between systems.
  User Context: The user context under which the session is being initiated may not have the necessary permissions or may not be correctly mapped.
  
  Solution:
  To resolve the D-326 error, you can take the following steps:
  
  
  Check Session ID: Ensure that the session ID being used is valid and not already in use. You may need to log into the target system and check the active sessions.
  
  
  Review RFC Configuration: Verify the configuration of the RFC destination in the source system. Ensure that the target system is correctly defined and that the session management settings are appropriate.
  
  
  User Mapping: Check if the user mapping between the source and target systems is correctly set up. Ensure that the user in the source system has the necessary permissions in the target system.
  
  
  Network Configuration: Investigate any network issues that may be affecting the communication between the systems. Ensure that firewalls or other network devices are not blocking the required ports.
  
  
  Session Management Settings: Review the session management settings in both systems. Ensure that they are configured to allow for the expected session handling.
  
  
  Restart Sessions: If necessary, restart the sessions in both systems to clear any stale or conflicting session IDs.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to session management and RFC communication for any specific guidance related to your version of SAP.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Use transaction codes like SM59 to manage RFC destinations and SM21 to check system logs for any related errors.
  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 beneficial to contact SAP support for further assistance.