How To Fix CCMS_XMB018 - Integration Server: Outbound messages with QoS "Exactly Once"

SAP Error Message - Details

• Message type: E = Error

• Message class: CCMS_XMB - CCMS: Monitoring for Exchang Infrastructure

• Message number: 018

• Message text: Integration Server: Outbound messages with QoS "Exactly Once"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCMS_XMB018 - Integration Server: Outbound messages with QoS "Exactly Once" ?

  The SAP error message CCMS_XMB018 typically relates to issues with the Integration Server when handling outbound messages that are configured with the Quality of Service (QoS) "Exactly Once." This QoS setting ensures that messages are delivered exactly one time, which is critical for maintaining data integrity in scenarios where duplicate messages could lead to inconsistencies.
  Cause:
  The error can occur due to several reasons, including:
  
  
  Message Processing Failures: If the Integration Server encounters an issue while processing a message, it may not be able to confirm the successful delivery of that message, leading to this error.
  
  
  Database Locking Issues: If the database is locked or if there are issues with the database connection, the message may not be processed correctly.
  
  
  Configuration Issues: Incorrect configuration of the Integration Server or the message processing settings can lead to this error.
  
  
  Network Issues: Problems with network connectivity can prevent messages from being sent or acknowledged.
  
  
  Resource Limitations: Insufficient resources (like memory or CPU) on the server can lead to processing delays or failures.
  
  
  Solution:
  To resolve the CCMS_XMB018 error, you can take the following steps:
  
  
  Check Logs: Review the logs in the Integration Server and the Application Server for any specific error messages that can provide more context about the failure.
  
  
  Monitor Message Processing: Use transaction codes like SXMB_MONI or SXMB_IFR to monitor the status of messages and identify any that are stuck or failed.
  
  
  Database Health Check: Ensure that the database is functioning correctly and that there are no locks or connectivity issues. You may need to check the database logs for any errors.
  
  
  Configuration Review: Verify the configuration settings for the Integration Server and ensure that they are set up correctly for handling messages with QoS "Exactly Once."
  
  
  Resource Allocation: Check the server's resource usage and ensure that it has enough memory and CPU available. If necessary, allocate more resources to the server.
  
  
  Retry Mechanism: Implement a retry mechanism for failed messages, if applicable, to ensure that they are reprocessed.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Quality of Service (QoS): Understanding the different QoS settings in SAP PI/PO (Process Integration/Process Orchestration) can help in configuring message processing correctly.
  Monitoring Tools: Familiarize yourself with SAP monitoring tools like CCMS (Computing Center Management System) and transaction codes for message monitoring.
  Performance Tuning: Regularly monitor and tune the performance of your SAP systems to prevent resource-related issues.
  
  By following these steps, you should be able to diagnose and resolve the CCMS_XMB018 error effectively.