Products that are out of stock will not be shown in the menu.
The "Hide products when out of stock" feature only works with menu items whose menu type is "Product" and "Text link" if the "Link type" is "Specific product".
Step 1. Edit a mega menu item with the menu type "Product" or "Text link" and the link type "Specific product".
Step 2: Turn on the "Hide products when out of stock" option.
This menu item will automatically hide when the product is out of stock.
