You can stop ticket type sales for either single event states, or across all event dates by following the below steps:
Take a single event date off sale
Stop ticket type sales for single event date:
From your Access Tonic dashboard, click Manage for the applicable event.
Click Sales.
Click Edit Allocation.
Set the Tickets Remaining column to zero.
Update the Allocation.
Take all event dates off sale
Stop ticket type sale across all event dates:
From your Access Tonic dashboard, click Manage for the applicable event.
Click Edit Listing & Tickets.
Click Ticketing.
Change ticket type status from On Sale to Not On Sale.
Save the changes.