Which flow type should be used when a user clicks a custom button or link?

The appropriate flow type to use when a user clicks a custom button or link is an autolaunched flow. Autolaunched flows are designed to run in the background without user interaction on the screen. They can be initiated automatically by various events or, as in this case, manually from a custom button or link in the user interface.

This flow type is particularly useful for executing complex business logic or making automated updates to records without requiring user input during the execution process. When a user clicks on a custom button or link, the autolaunched flow starts its execution sequence seamlessly, allowing for automation while maintaining a clean user experience.

In contrast, screen flows require user interaction to display screens and collect information, making them unsuitable for the button-click scenario where immediate background processing is desired. Scheduled flows execute at specified times or intervals, and record-triggered flows initiate automatically upon record creation or updates, which do not apply to a direct button click.