How To Fix BT504 - No target host for background processing is currently active

SAP Error Message - Details

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 504

• Message text: No target host for background processing is currently active

What causes this issue?

You can specify a target computer when you schedule a job. This
specification determines which computer the corresponding job will be
executed on. The name entered is checked according to various
criteria.
There are several different causes for this message:
The check was attempted, but failed. No SAP system that supports
background processing could be found in the current configuration.
The system attempted to create an overview of all computers that
currently support background processing (e.g. have work processes of
the appropriate type). However, no such SAP system could be found.

System Response

This error message is output. In interactive mode, the name of the
target computer must be left blank. Please note that this field
can remain unspecified. If so, the load situation at execution time of
the job will determine the computer where the job is performed.

How to fix this error?

Check the current configuration of the active SAP systems. It is
possible that no background processing has been activated.
If this configuration is intended - that is, if background processing
should not be supported right now - then the function that triggered
this message cannot be performed right now (e.g. the display of
possible input values cannot be called).
Please also note that the name of the destination computer is not a
required entry. If it is not specified, the load situation at the
execution time of the job will determine the computer where the job
runs.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BT504 - No target host for background processing is currently active ?

  The SAP error message BT504 indicates that there is no target host available for background processing in the SAP system. This typically occurs when the system is unable to find an active background processing server or when the configuration for background processing is not set up correctly.
  Causes:
  
  Inactive Background Processing Server: The background processing server may not be active or may have been stopped.
  Configuration Issues: The configuration for background jobs may not be set up correctly in the SAP system.
  Network Issues: There may be network connectivity issues preventing the system from reaching the designated background processing server.
  Resource Limitations: The system may be experiencing resource limitations, such as memory or CPU constraints, which can prevent background jobs from being processed.
  Authorization Issues: The user may not have the necessary authorizations to execute background jobs.
  
  Solutions:
  
  
  Check Background Processing Server:
  
  Go to transaction SM61 (RFC Destinations) and check if the background processing server is active.
  Ensure that the server is running and properly configured.
  
  
  
  Review Job Scheduling:
  
  Use transaction SM37 to check the status of background jobs. Look for any jobs that may be stuck or failed.
  If necessary, delete or restart any problematic jobs.
  
  
  
  Check Configuration:
  
  Review the configuration settings for background processing in transaction SM36 (Define Background Job) and ensure that the job is scheduled correctly.
  Verify that the job is assigned to the correct target server.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues preventing communication between the application server and the background processing server.
  Check firewall settings and network configurations.
  
  
  
  Resource Monitoring:
  
  Monitor system resources using transaction SM50 or SM66 to ensure that there are sufficient resources available for background processing.
  If resource limitations are identified, consider optimizing the system or increasing resources.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the background job has the necessary authorizations. Check roles and profiles assigned to the user.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Monitor Background Jobs
  SM36: Define Background Job
  SM61: RFC Destinations
  SM50/SM66: Process Overview
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to background processing and the BT504 error.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the BT504 error in your SAP system.