If I know that a particular connection end point is going to be down for maintenance, can I "pause" or disable a queue listener process that uses it without actually unattaching it from the environment?
No, but it will hopefully be added to the backlog soon. See idea Ability to Stop or suspend Listeners
Workaround: undeploy the process
No It can’t be done.
There is an idea in place, do vote for it.
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