Making FormIt and Shopkeeper Work Together on Checkout Pages

Checkout pages built from Shopkeeper plus FormIt can fail in subtle ways: the form validates but the order does not complete, the submit button looks right but the hooks fire in the wrong order, or the whole flow breaks because both parts expect to control the same submission state.

The safe approach is to make the responsibilities explicit. Shopkeeper should own cart and order data, while FormIt should own validation and mail or responder hooks only where they clearly belong.

The original configuration combined shk_fihook, email hooks, and standard required-field validation in one checkout form. That is a valid pattern, but only when the submit variable, template, hook order, and cart snippet all agree about when the request becomes an order.

This remains one of the most useful Evolution ecommerce topics because many real-world sites still rely on exactly this combination.