Behavior of MODIFY_SYSTEM and queues

Products

• CA Automic One Automation

Issue/Introduction

How does MODIFY_SYSTEM() work with queues and exceptions?
Does it override a limit set by an exception?

Environment

Release : 12.3

Component :

Resolution

This depends on when the MODIFY_SYSTEM command is done.  Here is how this breaks down:

• MODIFY_SYSTEM before an Exception starts:
  The MODIFY_SYSTEM settings from the script will take effect UNTIL the Exception starts, then the Exception will take over.  When the Exception ends, the Defaults will be put back into place
  
  
• MODIFY_SYSTEM after an Exception starts but before the exception ends:
  The Exception settings will be in place until the MODIFY_SYSTEM settings from the script are run.  When the Exception would normally end, the Defaults will be put back into place
  
  
• MODIFY_SYSTEM after an Exception ends:
  The MODIFY_SYSTEM will stay in place until another Exception starts or another MODIFY_SYSTEM command is run

Some of this is also explained in the documentation here: https://docs.automic.com/documentation/webhelp/english/AA/12.3/DOCU/12.3/Automic%20Automation%20Guides/help.htm#Script/Reference/MODIFY_SYSTEM.htm?Highlight=MODIFY_SYSTEM

"Changing the status of Queue objects (Start/Stop) using this script element (Action: MODE) has the effect that the new status is valid until a new modification is made. Modifications to priority or maximum queue slots remain valid until these values are changed due to an exception or if a user changes them manually, see Considering ERT in Queue Objects."