Link custom-built quiz results to Klaviyo email flow

Hi there @dana dc,

Welcome to the Community.

This is possible using dynamic event data, but you will need to create a custom API call that passes along the product results of the quiz and the email address of the quiz you built to Klaviyo.  Once you have sent this data over, you can use dynamic event data tags to populate this information into Klaviyo. The flow email that is to contain this information must be triggered by the created API call event, it cannot be triggered by the user being added to a List in Klaviyo, as List-triggered flow emails cannot populate event data. 

Building out an API call does require a developer or someone with development knowledge on your team.  At this time, Klaviyo does not troubleshoot custom API calls or provide support for them besides passing along our API documentation.  
Klaviyo API Documentation
Klaviyo API Reference Guide

Hope that helped,

Alex