Payflow: COD & Checkout Rules

Payflow lets merchants add a Cash on Delivery (COD) fee without editing orders after checkout. You can hide, rename, or reorder payment methods and delivery methods using conditions such as cart totals, products, collections, customer tags, and address fields. Checkout validations can block checkout when an order does not meet your rules. Combine conditions using AND/OR groups. Payflow uses Shopify Functions so payment customizations, delivery customizations, and validations run at checkout.