The below instructions relate to sections of the Customers & Identifiers module:
Identifiers are tags or codes used to access available Roles, Promotions and Loyalty Schemes in GPoS. One Identifier can have multiple Roles, allowing for multiple Loyalty Schemes to be assigned. Identifiers are also used to identify a Customer, though this is not always the case or even necessary. For example, Loyalty cards can be given out and used immediately without them needing to be registered to Customers, as the Roles, Schemes and Transactions are recorded against the Identifiers themselves.
An Identifier can be added on the fly as part of adding or editing a Customer. See this article for details on how to add and edit Customers.