How to setup pre-order products?

When you define a preorder metafield, you can easily toggle on or off the preorder feature which converts the Add to Cart button to a Pre-order button.

Setup

Setting up a preorder metafield is very simple and can be done right in your Shopify Admin.

Create a custom metafield for product with namespace and key: 'ortheme.preorder' and field type is True or false

Product setup

If a product is a pre-order, select true