Data sources allow you create and maintain data sets for use in your screens. Examples include lists of choices, product catalogs or contact lists, etc. You can also use them in choices questions on your forms and as back up data for other screen types. For example, you may have a contacts data source which you display as a listing screen. This would have its own icon on your app start screen.
Data sources save time by centralizing your data sets in one place. They automatically update changes made to the screens they are linked to. If you have technical personnel, they can update your data sources through integration API. This will allow integration within your existing systems. Changes to database tables or lists within your existing systems will automatically update in your mobile app. For example, you may have a catalogue of products that you maintain in your own inventory software. By linking this to the integration API, any changes made to the inventory can automatically flow to your app users in the field.