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.
To generate a random affiliate id kindly use the unique field widget.
If the affiliate id originates from an external source you can pass it to a hidden text-field as a URL parameter value.
Kindly check out this guide on how to use URL parameters http://www.jotform.com/help/71-Prepopulating-fields-to-your-JotForm-via-URL-parameters