woocommerce_receipt_ doesn't run in the block-based checkout

[jimjasson]

Describe the solution you'd like

The woocommerce_receipt hook doesn't run in the block-based checkout. This action is part of the checkout/order-receipt.php template that is rendered only in the legacy checkout -- before the payment is completed.

This action was particularly useful for payment gateways that want to render a 2FA form or a custom payment form before the order is submitted but after the Place Order button is clicked. Here's an example.

[ralucaStan]

p1715262073966669-slack-C8X6Q7XQU

[opr]

To summarise this issue and add a little more context, the woocommerce_receipt hook may be used by extensions to show content, e.g. a 2FA form or a custom payment form before the order is submitted but after the Place Order button is clicked.

We discussed recommending the woocommerce_thankyou hook as an alternative, but it may be unsuitable as it runs at a different time in the WordPress lifecycle, but investigating that could be part of solving the issue.

There are three possible approaches to solving this:

• Reimplement the woocommerce_receipt hook with the caveat that it may run at a different time in the lifecycle
• Add guidance to extension developers to suggest using woocommerce_thankyou.
• Add guidance to extension developers about adding custom blocks in the block-based order confirmation.

A related discussion happened here: #48126