How To Fix RT639 - Cross-system number of background work processes for high priority jobs

RT639 - Overview

• Message type: E = Error

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

• Message number: 639

• Message text: Cross-system number of background work processes for high priority jobs

What causes this issue?

The number of background work processes that is reserved for background
jobs of high priority (class A) system-wide is displayed here. With
this reservation, you can ensure that especially important jobs always
have enough resources, even when there is high usage of the background
system.

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?

To find out how to reserve background work processes for high priority
jobs, choose <LS>SAP Library -> SAP Web Application Server ->
Computing Center Management System (BC-CCM) -> Background Processing ->
Job Scheduling Explained -> Scheduling Background Jobs -> Prioritizing
Class A Jobs </> or click
<DS:KENO.5CC5A5F0C8C05541958CB43DF11F6306>here</>.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT639 - Cross-system number of background work processes for high priority jobs ?

  The SAP error message RT639 indicates that there is a configuration issue related to the number of background work processes available for high-priority jobs across different systems in a distributed environment. This error typically arises when the system is unable to allocate sufficient background work processes to handle high-priority jobs, which can lead to delays or failures in job execution.
  
  Cause:
  
  Insufficient Background Work Processes: The number of background work processes configured in the system may be too low to handle the volume of high-priority jobs.
  Cross-System Configuration: In a landscape with multiple SAP systems (e.g., Development, Quality Assurance, Production), the configuration for background processing may not be consistent or optimal across these systems.
  Job Priority Settings: High-priority jobs may be competing for limited resources, leading to contention and the inability to execute jobs in a timely manner.
  System Load: The overall load on the system may be high, causing delays in job processing.
  
  
  Solution:
  
  
  Increase Background