There’s now an option to show a Discount Code field on the gift card form (Note: set to HIDDEN by Default).

When you enable it, a Discount Code field is displayed on the Gift Card Form.

1. Go to Settings > Promotions > Gift Cards

2. Check the “Show Discount Code” field on the gift card form

3. Click Save Changes

4. Go to Settings > Promotions > Discount Codes

5. Create a discount code for “Gift Card”

Now a Discount Code field is displayed on the Gift Card Form.