# Pre-orders and back in stock

How Gatefold decides a pre-order, the acknowledgement switch and Notify me.

## Pre-orders

A product is a pre-order when its release date is in the future. Without a date, the badge metafield and the **Pre-order tags** are used instead. Settings live in **Theme settings > Pre-orders**.

* **Require pre-order acknowledgement:** shoppers turn on a switch with your **Acknowledgement text** before the buy button and express checkout buttons become active. Quick add on cards, editions and offers never skips this: gated pre-orders link to their product page instead.
* **Show ship-complete notice in cart:** the cart shows the latest release date in the cart as the ship date for the whole order, because pre-orders ship complete.

## Back in stock

With **Show Notify me on sold-out products** on, a sold-out product shows a Notify me button that opens an email field. Cards link to it with `#notify-me`. Choose where sign-ups go with **Send sign-ups to**:

* **Shopify:** the shopper is saved as a customer with tags such as `back-in-stock`, `back-in-stock:product-handle` and `back-in-stock-variant:12345`. Filter customers by tag to see who is waiting, or use Shopify Flow to email them when stock returns. Change the prefix with **Customer tag**.
* **Klaviyo:** the shopper joins Klaviyo's back in stock list and Klaviyo sends the email on restock. Enter your six-character **Klaviyo public API key**.