Stores credit card for use on the user profile page (securely) then charges the card when an item is triggered to shipRestricts shipment request from being created if the card is not charged successfully
Notify the user when their credit card is up for expiration
Use Stripe for payment gateway
https://stripe.com/docs/connect/creating-a-payments-page?ui=checkout
Quickbooks integration
Enabled/administered in an admin account