You can view and update the inventory status message that displays to your shoppers. The messaging displayed to shoppers is configurable , as follows:
Open the Design page and click the Layout tab.
Open the Product layout and click the Grid View option.
Locate the Product Details widget and open the Settings icon, visible on the top right corner of each widget.
Click the Layout option to display the elements and select Inventory Status.
You can now see the Product Details widget inventory status tabs, allowing you to customize the messaging displayed for each of the different statuses:
In Stock
Out of Stock
PreOrder
BackOrder
Add your message to the relevant inventory status.
Customize the message settings, and preview.
Click Done to save your configurations, and Save to exit the widget settings.