In plain words: Autofill in Lightning Web Components (LWC) automatically predicts, completes, or populates related form inputs as the user types. This is typically done either by filtering client-side suggestions or by fetching live record details with Lightning Data Service ( getRecord ) to populate secondary fields instantly. Manually entering repetitive data slows down business users and increases data entry errors. Implementing smart autofill functionality provides a streamlined, desktop-grade experience. Depending on your use case, you can implement instant keyword-based auto-completion or automatic field population from linked Salesforce records.
Topic
LWC
Lightning Web Components