Product Availability Slots for WooCommerce can help you Sell Products on Fixed Time Slots in your WooCommerce Shop. Product Availability Slots for WooCommerce lets you sell limited-time products during fixed time slots in your WooCommerce shop. Using this plugin, it’s easy to sell products on specific days at specific time-slots. Offering products on a limited time can create a sense of urgency which can trigger the user to make the purchase right away.