Air Fill can hand someone a form that already has certain answers filled in. In the form editor, Copy prefill link creates a deep link: you add a value after each field’s ID to set that field’s starting answer.
The link is keyed to a stable field ID, not the field’s name. Each field has a copyable field ID in its settings, and that ID is the glue that holds the link together — so a prefill link keeps working even after you rename the field.
Import from Airtable URL
If you already have a prefilled-form URL from Airtable, Import from Airtable URL brings it into your form. It reads the URL’s prefill_ and hide_ parameters — which Airtable keys by field name — and applies them to your Air Fill form.