Forms allow app users to submit, update and delete records, search records, or sign-up new app users.   
Note: Only app users with appropriate role permissions can access or edit data stored in a data source. Learn more. 
The following form types are available:  

Submission Form

Submission Forms capture data such as text, numbers, and dates. You can use them to generate automatic email messages to the users who submit information (acknowledgement emails) and people in your organization (notification emails). Sample submission form for entering information to use in automatic emails and notifications. For example, you can send a confirmation email to the users who subscribed to your newsletter. 

Details/Update Form

Details/Update Forms are used to display and edit record details. Sample details/update form showing a single record with options to delete it and display other records.  

Search Form

Search Forms are used to filter records displayed in the report DataParts and Details/Update Forms. For example, you can enable app users to filter report data with a multi-criteria search form. Sample search form with fields for entering search criteria.