Create and design model-driven app forms
With PowerApps, forms provide the user interface that people use to interact with the data they need to do their work. It's important that the forms people use are designed to allow them to find or enter the information they need efficiently.
In the default solution or an unmanaged solution, you can create new forms or edit existing forms for all entities that allow form customization. In an unmanaged solution, you can edit the managed properties for an unmanaged custom entity that was created for the solution. If you’re viewing a managed solution, you can’t create new forms or edit existing forms for entities. However, if the managed properties for an entity in the managed solution are set to allow customization, you can add or edit forms to that entity.
Type of forms
There are different types of forms, and each type has a specific functionality or use. More information: Type of forms in PowerApps.
Updated versus classic entities
PowerApps provides many options for designing forms. With Unified Interface, most entities were updated to better suit the responsive interface. Updated entities as well as your own custom entities include support for the Dynamics 365 for tablets client, business process flows, and business rules. When you use these entities, you can design once and deploy to all clients.
There are still a number of entities, referred to here as classic entities, that retain the appearance and capabilities from earlier versions. These entities are used less often. They are listed here:
|Address||Article||Article Comment||Bulk Delete Operation||Connection|
|Discount||Discount List||Document Location||Email Attachment||Follow|
|Goal||Goal Metric||Import Source File||Invoice Product||Order Product|
|Price List||Queue Item||Quote Product||Rollup Field||Rollup Query|
|Saved View||Service||Service Activity||SharePoint Site||Site|