Adding a card layout
Use a card layout to display text-based information about a series of objects and make viewing and comparing multiple objects easy. It can also be used to add parent and child objects and select objects to work on.
About this task
Card layouts are valid in Creation, Task, and Admin Views.
A card layout shows related objects in boxes and supports actions. It is suited, for example, for displaying related regulations or parent business entities.
Use a card layout when only a few objects, for example, less than five, are expected to be displayed. Use a grid layout if you expect numerous objects to be displayed.
The Fields property controls the fields that are displayed in the relationship field. You can control what field the information is sorted by and the sort order.
If you choose an actor field in Sort By, the values are sorted by username (not first name and last name). The sort is case-sensitive.
In the following example, a business entity is open and each card shows a child business entity.

On the JSON tab, a card layout is defined with type as relationship and subDisplayType as card.