Is it possible to change the Zero SubTotal Checkout function to allow anything less than or equal to zero?
So a negative grand total would not require a payment.
Magento Stack Exchange is a question and answer site for users of the Magento e-Commerce platform. It only takes a minute to sign up.Sign up to join this community
Magento have an option for Zero checkout.
Admin > System > Configuration > Payment Methods > Zero Subtotal Checkout
Select as per you need.