Limit shirt order

Hi, I want to setup a form which allows users to select a number for their playing shirt in a soccer team. I'd like to create a dropdown which has numbers 1-16 as options but once a user has selected a number and submitted, it will not allow that number to be selected again.

Is this possible?

Instead of using a dropdown field, try using the TICKET PURCHASE widget. This widget is a checklist of different types of tickets, with a counter that tells your form users how many tickets are available before they get sold out.

All you need to do is limit each ticket/slot to only one. So when it gets selected by a user, it will be grayed out/disabled on the next form submission.

Here's a demo form so you could try it: https://form.jotform.com/60130611186949