Navigation functions transition users from their current screen to another screen or launcher screen.

Use navigation functions to transition from your current screen to another screen or launcher screen. For example, opening a record from a list, or moving from an employee user profile screen to a manager user profile screen. Navigation functions use the Global or Record context.
A navigation function configured to navigate from a form field to a user record.

Navigation function contexts

Global Context
Use global context navigation functions in situation where the navigation does not depend on information from a record. For example, to navigate to a specific screen or launcher screen, you can use a global context navigation function. For examples of global context navigation configuration, see:
Record Context
Use record context navigation functions in situations where the navigation depends on information from a record. For example, you want to navigate from the Assigned to field in an incident record to the assignee's user record. In this case, you would use a record context navigation.