The One-Time Add-Ons List allows you to exclude certain items from repeat orders with customers using Subscribe and Save. This is best used for seasonal and/or low-supply items.
How to access the One Time Add-Ons List: Admin > Settings > Marketplace > Subscribe & Save > Products.
To add products to your excluded products list, follow the click path above and use the product search. Any existing excluded items can be removed from this list at any time.
When an excluded product is added to a customer cart, there will be a message indicating this is a one-time item only. When the customer's next order generates, the one-time item will be removed.