How to quick check the submission is unique before filling up all information?

Hi, is there any trick to run a quick check whether the submission is unique? We've set the personal ID code as unique, but however do not want to run through the whole filling up before discovering that it is a duplicate record. Thanks!

It is possible to limit the form submissions based on a unique question. We have a guide that will help you achieve this function, here's the link: https://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question

Hope that helps. If you need any help, let us know. Thank you.