How To Fix RSCRT370 - Select a daemon

SAP Error Message - Details

• Message type: E = Error

• Message class: RSCRT - Near-To-Real-Time Messages

• Message number: 370

• Message text: Select a daemon

What causes this issue?

You tried to execute a function that requires that you first select a
daemon for real-time data acquisition. The folder <SE><ZK>Unassigned
objects</></> is not a daemon.

System Response

The function could not be executed.

How to fix this error?

Select a daemon for real-time data acquisition or an assigned object and
start the function again.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSCRT370 - Select a daemon ?

  The SAP error message RSCRT370, which states "Select a daemon," typically occurs in the context of SAP's background processing or when dealing with the SAP spool system. This error indicates that the system is unable to find or select a suitable daemon (a background process) to handle the requested operation.
  Cause:
  
  No Daemon Available: The most common cause is that there are no active daemons available to process the request. This can happen if the background processing system is not properly configured or if all daemons are busy or have crashed.
  Configuration Issues: There may be issues with the configuration of the background processing system, such as incorrect settings in the instance profile or missing parameters.
  System Load: High system load or resource constraints can lead to daemons being unable to pick up new jobs.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the daemons.
  
  Solution:
  
  Check Daemon Status: Use transaction code SM37 to check the status of background jobs and see if there are any active daemons. You can also check the status of the background processing using transaction SM50 or SM66.
  Start Daemons: If no daemons are running, you may need to start them. This can typically be done through transaction SM61 or by restarting the SAP instance.
  Review Configuration: Check the instance profile settings (using transaction RZ10) to ensure that the background processing parameters are correctly set. Look for parameters like rdisp/wp_no_btc which defines the number of background work processes.
  Monitor System Load: Use transaction ST02 to monitor memory and buffer usage, and ST04 for database performance. If the system is under heavy load, consider optimizing performance or scaling resources.
  Check Authorizations: Ensure that the user has the necessary authorizations to execute background jobs and access the daemons.
  Review Logs: Check the system logs (transaction SM21) and developer traces (transaction ST22) for any related errors that might provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RSCRT370.
  Documentation: Review SAP documentation on background processing and spool management for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups for additional insights and shared experiences from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.