When you build a form in Form Studio, you often want a field to automatically show information that came from an earlier step in your workflow — a customer name pulled from an intake form, an amount from an invoice, or a reference number generated upstream. Instead of retyping that value, you can bind the field directly to that data.
Once a field is bound, Form Studio shows a small chip right on the canvas so you always know, at a glance, exactly where a field's value is coming from.
Here's a form with two fields. The first one is bound correctly. The second one lost its source.

2 ▷ Notify Vendor Subject. This tells you the value comes from step 2 of your workflow ("Notify Vendor"), specifically its "Subject" field. As long as that step keeps producing a Subject value, this field will always show it — no manual re-entry needed.⚠ Confirm Order Order Reference. The amber color and warning icon mean the binding is broken — usually because the step it pointed to ("Confirm Order") was renamed, removed, or no longer produces that field. Hovering over the icon explains this directly: "This binding is broken. Edit in the Properties Panel to re-bind."This is the entire point of the chip: you never have to guess whether a field is live-connected or just holding static text, and you never have to discover a broken connection by testing the form — the canvas tells you immediately.
Here's the same fields in context, inside the Form Studio canvas:

The chip appears directly under the field's label, right on the canvas — you don't need to open the field's settings panel just to check whether it's bound or to what.
If you see the amber warning chip:
Binding chips turn an invisible, easy-to-miss connection ("is this field wired up correctly?") into something you can literally see while you're building — so problems get caught while you're designing the form, not after a real customer submits it.