How To Fix PO066 - Monitoring object: spool service processing group "test printing"

PO066 - Overview

• Message type: E = Error

• Message class: PO - Spooler message

• Message number: 066

• Message text: Monitoring object: spool service processing group "test printing"

<LS>&SYS_ADMIN&</>
This node collects monitoring information about processing of test
print requests. This processing group should include output devices
used to test new output devices or configurations, which may result in
errors.
STYLE S_DOCUS1
To classify the output requests, we recommend you assign classes to
both the spool servers and output devices. By using spool servers
configured for different types and priorities, you can better control
output requests.
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For more information, see:
SAP Note 118057 (Flexible Configuration of the Spool System)
<LS>SAP Library -> SAP Web AS -> Computing Center Management System
(CCMS) -> SAP Printing Guide -> Monitoring the Spool System</>

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

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Error message extract from SAP system. Copyright SAP SE.

PO066 - Details

• The SAP error message PO066 typically indicates an issue related to the spool service processing group, specifically in the context of printing. The message suggests that there is a problem with the configuration or status of the spool service that is responsible for handling print requests.
  
  Cause:
  
  Spool Service Configuration: The processing group for the spool service may not be correctly configured or may not exist.
  Spool Work Process: There may be issues with the spool work processes, such as they being stopped or not available.
  Printer Configuration: The printer or output device may not be correctly configured or may be offline.
  Authorization Issues: The user may not have the necessary authorizations to access the spool service or the specific printer.
  System Load: High system load or resource constraints may prevent the spool service from processing requests.
  
  
  Solution:
  
  
  Check Spool Configuration:
  
  Go to transaction SPAD (Spool Administration) and verify the configuration of the output device and the processing group.
  Ensure