Abstract: Systems, computer-implemented methods, applications, and user interfaces for defining custom user interfaces in a system of record are disclosed. For example, a computer-implemented method may include: providing one or more first interfaces for defining one or more custom objects; receiving, via the one or more first interfaces, at least one custom object definition comprising one or more data fields; automatically generating, based on the at least one custom object definition, one or more second interfaces for configuring one or more graphical user interfaces; receiving, via the one or more second interfaces, at least one graphical user interface configuration defining a layout for a graphical user interface associated with the at least one custom object definition; generating, based on the graphical user interface configuration, at least one third interface comprising a graphical user interface having the layout; and providing, to one or more users, the at least one third interface.