What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Unique ID widget generates the number based on autoincrement for every time the JotForm is submitted. This is unique but cannot be random. The generated number can be just a number or you can prefix some characters as you need.
I am not sure though, but I think linkshare should accept the number as long as it has no special characters.
Okay. I see that you were asking about submission ID generated when the JotForm is submitted but not unique ID widget while I answer your other thread. I've changed the title of the thread now to avoid confusion.
To answer this question, it is Yes. The submission ID is unique for each submission and this ID is available to pass on to the Thank you page through POST.
Hope this helps. Let us know if you have any other questions.