How to Add Link that Automatically Applies a Coupon Code to a Shopify Cart.

[arifulayon]

Hi, how are you doing guys? I'm here to find a solution about Klaviyo Coupon Code that applies on a template. If that says specifically that is "Add Link that Automatically Applies a Coupon Code to a Shopify Cart. Previously, I was trying like this way. EXAMPLE COUPON CODE: SAVE30 I add this on a text block in template like this: {% coupon_code 'SAVE30' %} EXAMPLE PRODUCT LINK: https://www.trupawsco.com/products/tru-multivitamin-1 I add this link on a button in template like this: https://www.trupawsco.com/discount/{% coupon_code 'SAVE30' %}?redirect=/products/tru-multivitamin-1 After that, I previewed the template on my email. But the button shows errors like " 404 Bad Gateway". What did I do wrong here?