CUSTOM TEXT FOR ATC BUTTON - CONSIDER OTHER SETTINGS WHEN ONLINE STORE INCLUDE THIS CUSTOM FEATURE.
Tick the checkbox for Track quantity and add the available quantity to control the number of orders.
Online stores that accept card payment may consider payment capture = manually (Allows you to authorise payment manually without charging to customer's card immediately), and if there's agreement that you are charging your customers in advance for a pre-order product that will ship at a later date, then you are able to capture funds immediately.
- Option available under Settings > Payments > scroll down to Payment capture, click Manage > select
Manually