Can I pull pre-populated form values from a data source (not URL parameters)

I have a long form and i want to split it into two forms.

Short form - only has simple questions so it can be completed quickly

Long form - will take more time but should include the answers from the Short form that was completely previously.

I want to do this without having to pass querystring parameters because it's a security issue to track these values in URLs (personally identifiable information).

I want to know if Jotform can be configured in such a way that the short form submissions can be prepopulated into the long form on load based on an ID in the querystring.

To my understanding, you would like to pull the submitted data from the Short Form and fill in the Long Form with that data automatically without using URL parameters (query string) to pass it.

I believe what you are trying to do is possible by sending the submission data via POST method from the Short Form to the page where you must embed the Full Source Codes of the Long Form.

Send-Submission-Data-via-Post-Method-and-Thank-You-Settings

How-to-get-the-Full-Source-Code-of-your-Form

That workaround would require custom scripts to read the POST data being passed from the Short Form to the Long Form.

If you have other questions or concerns, please feel free to let us know.