How to identify students who did not register for the exam?

Hi,

I am trying to prepare an exam registration form via JotForm. For this, I used "Appointment Slots" widget and integrated Google Sheets. 

My goal is to identify the students who did not sign up for the exam (they will choose the appropriate time for themselves and they will be able to edit it later.) in order to send a reminder to them so that they can register.

How can I do this? If you have an idea, please help me.

Yasemin 

We will be glad to help you with your concern. However, we may need to ask for more details from you. If I'm understanding you correctly, you have a list of students that will fill up your form so they can register for the exam. And you would like to know who among those students will not sign up so you can send them a reminder so they can register.

I would suggest you list the name of the students in a drop-down field where respondents (students) can select their name. From the submission page or Google Spreadsheet, you will be able to know which name weren't selected. To avoid the same name from being selected by two different students, you can set the drop-down field as a unique question. How-to-set-Form-Limits-Based-on-a-Unique-Question

I hope this helps. If, in any case, I have misunderstood your concern, please feel free to contact us again anytime.

Thank you.