So we’re trying to set up a zap that triggers when someone completes a form on instapage which should send add that person to a subscriber list in Klaviyo. For context, we have two potential forms that can be filled out with different parameters - essentially a ‘true’ or ‘false’ depending on which button you pressed (and subsequently which form you filled in).
When testing to send a sub to Klaviyo, I’m met with the error
The subscriber could not be sent to Klaviyo.
Error parsing response. We got: "<!DOCTYPE html>
Does anyone know why this is or how to solve?
Thanks!