How To Fix /SMB/Q2P_HC028 - Q2P: Release deferred transp. requ. (LCP): Creation of RFC connect failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/Q2P_HC -

• Message number: 028

• Message text: Q2P: Release deferred transp. requ. (LCP): Creation of RFC connect failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/Q2P_HC028 - Q2P: Release deferred transp. requ. (LCP): Creation of RFC connect failed ?

  The SAP error message /SMB/Q2P_HC028 Q2P: Release deferred transp. requ. (LCP): Creation of RFC connect failed typically indicates an issue with the Remote Function Call (RFC) connection in the context of the SAP Landscape Management (LaMa) or related systems. This error can occur during the process of releasing a deferred transport request, particularly when the system is trying to establish an RFC connection to another SAP system.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved.
  RFC Destination Configuration: The RFC destination may not be correctly configured or may be missing.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  System Load: High system load or resource constraints may prevent the establishment of new connections.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems is stable and that there are no firewalls blocking the communication.
  Verify RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Test the connection to ensure it is working correctly.
  
  
  Check User Authorizations: Ensure that the user used for the RFC connection has the necessary authorizations to perform the required actions.
  Restart SAP Gateway: If the SAP Gateway is not running, restart it. You can do this through transaction SMGW.
  Monitor System Load: Check the system performance and resource usage. If the system is under heavy load, consider optimizing performance or scheduling the task during off-peak hours.
  Review Firewall Settings: Ensure that the firewall settings allow traffic on the required ports for RFC communication (typically port 3200 for SAP systems).
  
  Related Information:
  
  Transaction Codes:
  
  SM59: To manage and test RFC destinations.
  SMGW: To monitor and manage the SAP Gateway.
  ST22: To check for dumps that may provide more context on the error.
  SM21: To review system logs for any related error messages.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation on RFC connections and troubleshooting connectivity issues.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.