35. How do you manage application state across multiple screens in Power Apps?

Application state in Power Apps can be managed using variables, collections, navigation parameters, and named formulas. These approaches help store data temporarily or share information between screens.

Common options include:

• Set() – Global Variables
  Used to store values that need to be accessed across the entire app, such as user information.
• ClearCollect() – Collections
  Collections work like temporary tables and are useful for storing lists of records during a session.
• Navigate() – Passing Data Between Screens
  Data can be passed to another screen through the Navigate function to personalize what the next screen displays.
• Named Formulas
  Defined in App.Formulas, they act like reusable calculations and run only when required, improving performance.

Example

 Set(CurrentUser, User().FullName)

This stores the logged-in user’s full name in a global variable, allowing it to be accessed across multiple screens in the app.