Live Message Session reuse time (seconds)
The time between when a LiveMessage session is ended and a new message is received that an LiveMessage session should be reused. The Auto-Response Message, Text Session Start Message and the Text Session End Message aren't sent if a new LiveMessage session is received within the specified time period.
When Session Reuse Time is in use, the reopened message appears in agents omni-channel widget. Messaging Session will reopen.
Check below for more information
https://heywire.my.salesforce.com/sfc/p/#F0000000559Q/a/0G000000TDp7/KUMnkrkbzR9RHM.aU4CFguRVL3z7mGmz4kG8SS1UAJ8
