Making a product in-stock & out of stock filter

WooCommerce product stock filter tutorial

Product stock status in WooCommerce is stored in the _stock_status private custom field, which can have two values: instock and outofstock

On the search instance Frontend Search Settings -> Custom field filters panel you can easily make a filter on this field:

..this will result in:

Detailed Instructions

• To the Custom Field input enter: _stock_status

• In this example I use the Radio type, but Checkboxes or Drop-down is just as good

• To the values textarea enter:

  ||Any value**
  instock||In stock
  outofstock||Out of stock

For more information about custom field filters please visit the Custom Field Filters documentation.