How do I integrate a W9 form into my app?
Maybe link to it? How about some details to help us help you.
The way I implemented a I9 form is I have a separate page that is built in Google Sheets that matches exactly what an I9 looks like. In glide I have a page that has the same fields. These fields go to your normal columns like in any other app. There’s a submit button that prints my sheet and clears my columns. The document is setup to have each field pull from that row and those columns. So each field just reads “=Sheet1!A2” or something to that affect, So every field is populated as they type. When the button is clicked it is printed out and the info is cleared out. You could also have a add row to another sheet that saves the data right before the clear column action. But that’s what I do.