How To Fix BT517 - All servers for background processing are currently in use

SAP Error Message - Details

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 517

• Message text: All servers for background processing are currently in use

What causes this issue?

Your job cannot be executed immediately, as all the hosts that can
process background jobs are busy.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Either try to execute the job later, or choose Date/Time as the start
time and set Date = Today's date and Time = Current time. The job is
then automatically processed as soon as there is a work process
available on a suitable host.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BT517 - All servers for background processing are currently in use ?

  The SAP error message BT517 indicates that all servers designated for background processing are currently in use. This means that there are no available background processing servers to handle the new job request. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  High Job Load: There may be a high volume of background jobs currently running, which exhausts the available resources.
  Configuration Limits: The system may be configured with a limited number of background processing servers.
  Long-Running Jobs: Some background jobs may be taking longer than expected to complete, leading to a backlog.
  System Performance Issues: Performance issues in the SAP system can lead to delays in job processing.
  Job Scheduling Conflicts: Multiple jobs may be scheduled to run at the same time, leading to resource contention.
  
  Solutions:
  
  Monitor Background Jobs: Use transaction codes like SM37 to monitor the status of background jobs. Identify any long-running or stuck jobs and take appropriate action (e.g., cancel or reschedule them).
  Increase Background Processing Servers: If feasible, increase the number of background processing servers in the system configuration. This can be done in the SAP profile parameters (e.g., rdisp/bt_max_no).
  Optimize Job Scheduling: Review the scheduling of background jobs to avoid conflicts. Stagger job schedules to reduce peak load.
  Check System Performance: Analyze system performance using transaction codes like ST03N or ST04 to identify bottlenecks and optimize system resources.
  Review Job Definitions: Ensure that jobs are defined correctly and are not set to run more frequently than necessary.
  Restart Background Processing: In some cases, restarting the background processing can help clear up any issues.
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Monitor background jobs.
  SM50: Monitor work processes.
  ST22: Check for dumps that may indicate issues.
  SM66: Monitor global work processes.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to background processing.
  System Configuration: Review the instance profile settings for background processing parameters.
  Performance Tuning: Consider performance tuning measures if the system frequently encounters this issue.
  
  By following these steps, you should be able to address the BT517 error and improve the efficiency of background processing in your SAP system.