Customer Cards
Sales transactions are recorded against the Customer card in Business Central, creating accurate accounting for statements, reports and analysis.
See overview of standard Business Central Customers: Overview

Create Customer Cards
Customer cards can be created from the Customer List, either by manually entering data in all required fields, or by applying a template. 

 Learn more here To Create a New Customer

Create Customer Brand Cards
Brands are linked to customers for an added level of transacting.  Customer brands could have a different address, currency code or agency commission structure applied as required.