Pre-Order Now operates on a per-variant basis, which is set up exclusively under SINGLE PRODUCTS.
Here's how to do it:
1. Click on the "Single Products" tab.
2. Search for the product you want to enable for pre-order and click the pencil icon to edit its settings.
3. All the variants of the product will appear.
4. Edit the specific variant that you want to offer for pre-order.
That's it! If you have any questions or encounter any problems, please don't hesitate to let us know! We're here to help.