How To Fix CCMS_XMB020 - Integration Server: Outbound messages with QoS "Exactly Once in Order"

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 020

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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCMS_XMB020 - Integration Server: Outbound messages with QoS "Exactly Once in Order" ?

  The SAP error message CCMS_XMB020 typically relates to issues with the Integration Server when handling outbound messages that are configured with the Quality of Service (QoS) "Exactly Once in Order." This QoS setting ensures that messages are delivered exactly once and in the order they were sent, which is critical for many business processes.
  Cause:
  
  Message Processing Issues: The error can occur if there are problems in processing the messages, such as timeouts, system overload, or issues with the target system.
  Configuration Errors: Incorrect configuration of the Integration Server or the sender/receiver systems can lead to this error.
  Network Issues: Network interruptions or failures can prevent messages from being delivered correctly.
  Database Locking: If the database is locked or if there are issues with the database transactions, it can lead to message processing failures.
  Message Queue Overload: If the message queue is overloaded, it may not be able to process messages in the required order.
  
  Solution:
  
  Check System Logs: Review the system logs and the Integration Server logs for any specific error messages that can provide more context about the failure.
  Monitor Message Queues: Use transaction codes like SXMB_MONI to monitor the message queues and check for any stuck or failed messages.
  Configuration Review: Ensure that the configuration for the Integration Server and the sender/receiver systems is correct. This includes checking the communication channels and ensuring they are properly set up.
  Network Stability: Verify the network connections between the systems involved to ensure there are no interruptions.
  Database Performance: Check the performance of the database and ensure that it is not experiencing locking issues or performance bottlenecks.
  Retry Mechanism: Implement a retry mechanism for failed messages, if applicable, to ensure they are processed correctly.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to this error.
  
  Related Information:
  
  Quality of Service (QoS): Understanding the different QoS settings in SAP PI/PO (Process Integration/Process Orchestration) can help in configuring the system correctly.
  Transaction Codes: Familiarize yourself with transaction codes like SXMB_MONI, SXMB_IFR, and SXI_MONI for monitoring and troubleshooting message processing.
  SAP Community: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  Documentation: Refer to the official SAP documentation for detailed information on configuring and troubleshooting the Integration Server.
  
  By following these steps, you should be able to identify the root cause of the CCMS_XMB020 error and implement a solution to resolve it.