Since we use shopify’s draft order function to add the matching accessories (such as headbow, petticoat, shoes, etc.) to our products, Just like the screenshot below:
According to shopify's regulations, Coupon field will not appear on the checkout page for all draft orders. Just like the screenshot below:
So if you add the matching accessories to your shopping cart, the coupon field will disappear on the checkout page.
On the Shopping Cart Page:)
We have add a coupon field on the shopping cart page, You can find it there. Just like the screenshot below:
Have a good day:)
LolitaInside Team.