# Umbraco Properties Umbraco Commerce uses Umbraco nodes as its source of information. In order for Umbraco Commerce to gather the information it needs, it requires that a number of properties are defined at different locations. These properties must have specific property aliases. ## Properties

Alias	Type	Description
`store`	Umbraco.Commerce.StorePicker	Often placed on the site root node, but can be placed on any node higher than the product nodes themselves, this property links the website to a specific Umbraco Commerce store configuration.
`productName`	Textstring	Optional product node property that allows you to define an explicit product name other than the product nodes `.Name` property, which will be used as fallback.
`sku`	Textstring	Product node property defining the unique `SKU` of the product.
`price`	Umbraco.Commerce.Price	Product node property defining the prices for the product.
`stock`	Umbraco.Commerce.Stock	Product node property defining the stock level of the product.
`image`	Umbraco.MediaPicker3	Optional product node property defining an image for the given product.
`measurements`	Umbraco.Commerce.Measurements	Optional (depending on the shipping configuration) node property defining physical dimensions and weight of the product.
`taxClass`	Umbraco.Commerce.StoreEntityPicker	Optional product node property that allows you to define an explicit`Tax Class` for the product, should it differ from the stores default.
`isGiftCard`	True/False	Optional product node property that defined whether the product node should be considered a Gift Card product, in which case it triggers the automatic generation of a Gift Card in the backoffice and emails it directly to the customer on checkout.
`productSource`	ContentPicker	Optional product node property allowing you to link a product to another product outside of it's hierarchy to be used as it's source of product information.

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