PowerApps is a suite of tools provided by Microsoft that allows users to create custom business applications for mobile and web without the need for extensive coding knowledge.
Form in PowerApps is a screen where you can create, view, or edit a record from a data source, such as SharePoint, SQL Server, or others. There are three types of forms you can use in PowerApps:
The Patch function in PowerApps is used to modify specific records in a data source or to create new records. The general syntax of the Patch function is:
Patch(DataSource, BaseRecord, ChangeRecord1, ChangeRecord2, ..., ChangeRecordN)
The Patch function is very powerful and flexible. For example, you can use it to update a single field in a record, update multiple fields in a record, or even create a new record from scratch.