Once you have installed and activated the plugin, from the ‘General options‘ tab you will have the possibility of automatically enabling the ‘pre-order‘ mode for out-of-stock products. Let’s see how to achieve this:
1. Go to YITH > Pre-Order > General Options.
2. Enable the option ‘Automatically enable pre-order mode in out-of-stock products‘:

3. Once enabled, you will find below an additional option to decide on which products to enable the ‘pre-order’ mode, either All out of stock products or Only specific out of stock products or categories.
4. If you select Only specific out of stock products or categories, you can further set the specific products or categories:
