How To Fix RSM401 - No active communication structure & exists

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 401

• Message text: No active communication structure & exists

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 RSM401 - No active communication structure & exists ?

  The SAP error message RSM401 "No active communication structure exists" typically occurs in the context of SAP's Remote Function Call (RFC) or when dealing with communication structures in the SAP system. This error indicates that the system is unable to find an active communication structure that is required for the operation you are trying to perform.
  Causes:
  
  Missing or Inactive Communication Structure: The communication structure that the system is trying to access is either not defined or is inactive.
  Configuration Issues: There may be issues with the configuration of the RFC destination or the communication settings.
  Transport Layer Issues: If the communication structure is part of a transport layer, it may not have been properly transported or activated in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the communication structure.
  
  Solutions:
  
  
  Check Communication Structure:
  
  Go to transaction code SE11 (Data Dictionary) and check if the communication structure exists and is active.
  If it is inactive, activate it.
  
  
  
  Review RFC Destination:
  
  Use transaction code SM59 to check the RFC destination settings. Ensure that the destination is correctly configured and that the connection is working.
  
  
  
  Transport Requests:
  
  If the communication structure was recently transported, ensure that the transport request was successfully imported and that all necessary objects are active.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access the communication structure. You can check this using transaction code SU53 after the error occurs.
  
  
  
  System Logs:
  
  Check the system logs (transaction code SM21) for any additional error messages or warnings that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific communication structure you are working with, as there may be specific requirements or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.
  Community Forums: Check SAP Community forums or other online resources where similar issues may have been discussed.
  SAP Help Portal: Refer to the SAP Help Portal for detailed information on communication structures and RFC configurations.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.