Currently using the online checkout in Square - A customer can't use a gift card online, and then pay the remaining balance using another payment method.
When developing gift card functionality for the online checkout, this should have been developed in the first place as it's a pretty standard and expected feature for customers with a gift card.
Now - anyone that buys a gift card for my business, has to get in contact with me, so I can manually process a split transaction.
Square Community