The Master Data table type contains primary data (such as customers, vendors, items, employees, and so on). In any enhancement project, these are the tables that should be designed first because everything else will be based on these tables. When working on a modification, necessary changes to Master Data tables should be defined first. Master Data tables always use card pages as their primary user input method. The Customer table is a Master Data table. A customer record is shown in the following screenshot:

This screenshot shows how the Card page segregates the data into categories on different FastTabs (such as General, Address & Contact, and Invoicing) and includes primary data fields (for example No., Name, Address), reference fields (Salesperson Code, Responsibility Center), and a FlowField (Balance (LCY)).