Definitions Variants A Variant is a version of a  Product , which can be managed from the Inventory tab. These will be separated by Variant Options , and those distinctions are made in pricing or stock, e.g. Size Colour Fabric Grade A Variant may be linked to multiple  Unique Stock Records . Each Variant on a product may be given: Specific pricing Specific stock Specific dimensions Specific product imagery Specific Customisations Specific Upsells Specific Addons Other features around the site also link to Variants, including Promotions , Reporting , Order Fulfilment , etc. Unique Stock Records A Unique Stock Record is a sub Variant; it is a Variant to which Customisations have been applied.  A Unique Stock Record is also known as a USR It will inherit all characteristics of the parent Variant, except that it will also show the linked Customisations. These may be used just for  Stock Management and order fulfilment, or as a way of listing specific products for sale. These are managed via the Inventory tab, and may either be created there, or when a product with Customisations is added to a Purchase Order . Unless a Unique Stock Record is marked as enabled, its selling price will not be used in the POS, eCommerce or CMS. Instead, the default price of the Variant will be used Unless a Unique Stock Record is marked as enabled, its cost price will not be used in the POS, eCommerce or CMS. Instead, the default price of the Variant will be used.  It is not possible to manually create a USR for a Variant with the same options as a USR for that Variant which already exists FAQs Will my USR pricing be displayed to customers? The answer is yes, but only if the USR is made live: Live (POS) If set to be live in the POS, the USR will be presented as an option in the CMS and POS - if selected, the USR pricing will be used: or  If a salesperson happens to select the same combination of options through the wizards, that pricing will not be inherited. Once added, existing stock/Purchase Orders can be used to fulfil the Sales Order Line as normal.  Live (Web) If set to be live for web, the USR will be presented as an option in the CMS and on the eCommerce website - if selected, the USR pricing will be used. or Once added, existing stock/Purchase Orders can be used to fulfil the Sales Order Line as normal.    How can I add a new Unique Stock Record? A full guide is available here . My Unique Stock Record is marked as disabled for eCommerce - will its stock be used? While free stock of an enabled USR will show to the customer as 'in stock', free stock relating to a disabled USR will not, and the customer will see a default lead time for the parent Variant. However, if a customer does purchase a Variant and select a combination of Customisations which match  an existing USR with free stock, then that stock will be automatically allocated to that Sales Order Line regardless of USR status.