Adding unique ID in the "Thank you" for the submitter

I need to design an anonymous form which tells the submitter a unique ID (a counter would do) after they submit. I cannot use emails since I must not ask for their email.

I know of the "Unique ID" widget which allows me to track the submissions. Is there a way to add it to the "thank you" message so that the submitte sees it? If not, is there any way I can achieve the above?

Yes. It is possible to have a unique ID for each submission and display it on the Thank you page by using the Unique ID widget on your JotForm.

Please refer to the guide below that can help you with the Unique ID widget on your JotForms. 

https://www.jotform.com/help/79-Add-Custom-Unique-IDs-to-your-Form-Submissions

You can display the Unique ID on the Thank you page by changing the Thank you message to add the Unique ID form field.

Hope this information helps! If you need any further assistance, please let us know. We will be happy to help. 

Thanks. I actually had discovered how to do it myself minutes after I asked the question, but I couldn't find this thread to reply to it so I can let you know ...

Great! Glad to see that you have found the Unique ID that helped in achieving your requirement.

You can find your questions asked by clicking on My Questions button from the Support Forum page while you are logged into your account.