Hey we just received an additional complaint from another merchant about this issue.
Forwarding a discount code using the discount query parameter e.g. https://heystylin.myshopify.com/checkout?discount=TENOFF works on the first checkout attempt. In case the customer removes the discount, get back to the cart page and checks out again the discount isn’t being applied. Can someone from the Shopify team please check this?
Thanks guys,