Depending on a variety of factors, you may want some of your products to remain on your website, even if you've run out of inventory for that product. To do this, you need to allow backorder for these products, something that can be tweaked in the backend of Shopify. In this article, we'll go over how to allow backorder for your Shopify products.
To begin, view your product list in Shopify. Select the product you wish to allow backorder for, and go into the edit product menu. If the product has variants, check off each variant on this screen. Head to the Actions dropdown, and select "Continue selling when sold out".
To make sure something won't be on your website if you run out of inventory, follow the above steps, except select "Stop selling when sold out" from the Actions dropdown.
If you have any additional questions, please feel free to submit a support request from the Modern Retail Admin Panel.