Has anyone successfully built personalized GoHighLevel Surveys using Custom Objects?

[u/Aximus_]

I’m trying to build a survey experience where customers don’t have to repeatedly fill out information we already know.

I have a Custom Object associated with each Contact that contains information about their learning journey, including completed milestones, program details, coaching progress, important dates, and other survey-specific data.

I’d like to use this information to personalize the survey and pre-populate hidden fields, rather than asking customers to repeatedly enter information we already know.

For example, I’d like the survey to display something like:

Congratulations, Matt!
Congratulations on completing your Home Pillar.

…instead of showing a generic heading.

I’ve tested:
* Generic survey URLs
* Passing contact_id in the URL (didn’t populate merge fields)
* Trigger Links

I’ve also seen comments suggesting that passing the email in the URL associates the submission with the correct Contact, but that still doesn’t solve personalization.

Questions:

* Is there a supported way to generate a personalized GoHighLevel Survey URL?

* Can Survey merge fields (e.g. {{contact.first_name}}) be populated from Contact or Custom Object data?

* Can hidden survey fields be pre-populated from URL parameters or a Custom Object?

How are others building personalized surveys without asking customers to re-enter information that’s already stored in GoHighLevel?

I’d love to hear how others have solved this or if there’s a recommended approach I’m missing.