How To Fix RT643 - Number of background work processes in entire system

RT643 - Overview

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 643

• Message text: Number of background work processes in entire system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT643 - Number of background work processes in entire system ?

  The SAP error message RT643 indicates that the number of background work processes in the entire system has reached its limit. This can lead to issues with job scheduling and processing, as new background jobs may not be able to start until existing jobs complete.
  
  Cause:
  
  Configuration Limits: The number of background work processes is configured in the SAP system profile. If the limit is set too low for the workload, it can lead to this error.
  High Job Volume: A sudden increase in the number of background jobs can exceed the available work processes.
  Long-Running Jobs: If there are jobs that take a long time to complete, they can occupy the available work processes, preventing new jobs from starting.
  System Performance Issues: If the system is under heavy load or experiencing performance issues, it may not be able to process background jobs efficiently.
  
  
  Solution:
  
  
  Increase Background Work Processes:
  
  You can increase the number of background work processes