Products represent the items you want to sell to your customers.
Products vs ProductVariants
In Vendure, every Product has one or more ProductVariants. You can think of a Product as a “container” which houses the variants:
In the diagram above you’ll notice that it is the ProductVariants which have an SKU (stock-keeping unit: a unique product code) and a price.
Products provide the overall name, description, slug, images. A product does not have a price, sku, or stock level.
ProductVariants have a price, sku, stock level, tax settings. They are the actual things that get added to orders and purchased.
Vendure can track the stock levels of each of your ProductVariants. This is done by setting the “track inventory” option to “track” (or “inherit from global settings” if the global setting is set to track).
When tracking inventory:
- When a customer checks out, the contents of the order will be “allocated”. This means that the stock has not yet been sold, but it is no longer available to purchase (no longer saleable).
- Once a Fulfillment has been created (see the Orders section), those allocated items will be converted into sales, meaning the stock level will be lowered by the corresponding quantity.
- If a customer attempts to add more of a ProductVariant than are currently saleable, they will encounter an error.
Back orders can be enabled by setting a negative value as the “Out-of-stock threshold”. This can be done via global settings or on a per-variant basis.