How To Fix B1638 - ALE CCMS Monitor: & IDocs in tRFC queue but threshold value is &

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 638

• Message text: ALE CCMS Monitor: & IDocs in tRFC queue but threshold value is &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message B1638 - ALE CCMS Monitor: & IDocs in tRFC queue but threshold value is & ?

  The SAP error message B1638 indicates that there are IDocs (Intermediate Documents) in the tRFC (Transactional Remote Function Call) queue, and the number of IDocs exceeds a predefined threshold value. This message is part of the ALE (Application Link Enabling) CCMS (Computing Center Management System) monitoring framework, which is used to monitor the status of IDocs and other asynchronous processes in SAP systems.
  Cause:
  
  High Volume of IDocs: The primary cause of this error is that there are too many IDocs waiting in the tRFC queue, which may indicate a bottleneck in processing.
  Processing Issues: There may be issues with the receiving system that is supposed to process these IDocs, such as downtime, performance issues, or configuration problems.
  Network Issues: Network problems can prevent IDocs from being sent to the target system.
  Configuration Settings: The threshold value for monitoring may be set too low, leading to frequent alerts even if the number of IDocs is manageable.
  
  Solution:
  
  Check tRFC Queue: Use transaction code SM58 to check the tRFC queue for any stuck or failed entries. Analyze the entries to identify any errors.
  Monitor IDoc Status: Use transaction code WE02 or WE05 to monitor the status of IDocs. Look for any IDocs that are in error status and investigate the reasons for the errors.
  Process IDocs: If there are IDocs that are stuck, you may need to manually trigger their processing or resolve any issues that are preventing their processing.
  Check Receiving System: Ensure that the receiving system is up and running and can process incoming IDocs. Check for any performance issues or errors in the receiving system.
  Adjust Threshold Values: If the threshold value is set too low, consider adjusting it to a more appropriate level based on your system's normal operation.
  Review Network Connectivity: Ensure that there are no network issues affecting the communication between the systems involved in the IDoc processing.
  
  Related Information:
  
  Monitoring Tools: Utilize SAP monitoring tools like CCMS to keep track of IDoc processing and tRFC queues.
  Performance Tuning: Regularly review and tune the performance of both the sending and receiving systems to handle IDoc processing efficiently.
  Error Handling: Implement proper error handling and alerting mechanisms to quickly address issues when they arise.
  Documentation: Refer to SAP documentation and notes related to IDoc processing and tRFC for more detailed troubleshooting steps and best practices.
  
  By following these steps, you should be able to identify the cause of the B1638 error message and take appropriate actions to resolve it.