Product disabled dates are located in the “Bookings” tab, below booking settings. They are the same as disabled dates set in the plugin settings, but applied to the product/variation only.
Check this page for more information about disabled dates.
Variable products
Disabled dates can be configured at parent product level in the “Bookings” tab or at variation level in the “Variations” tab, below booking settings.
Bundle products
You can choose to use product disabled dates for bundled product in Bundle Products > Product > Booking settings > Use product disabled dates. It can be useful to uncheck it to set specific disabled dates applied to the bundle only.