Solved
Why am I receiving an empty response object after successful Klaviyo signup via Klaviyo API?
I’ve successfully integrated the Bulk Profile Subscription API into my codebase. When I enter an email and submit the form, Klaviyo profiles displays my most recent submission. While the submission/signup is successful, I STILL receive an empty response object. I want the response object to contain information which I can use to tell the user they have successfully signed up.