Hello @royd79,

Welcome to the Klaviyo Community!

If you haven’t already, I would suggest taking a look through our Klaviyo Partner Directory. I know a number of our partners offer API development work to help connect custom platforms to Klaviyo. 

You can also try posting in our Community Job Board as well to see if anyone might be available to help. 

I hope this helps and welcome to the Klaviyo Community!

David

Hi @royd79 

I understand your concern, and I recommend you Hire Dedicated Shopify App Developers to integrate an API from the app BTA Appointment in Shopify with Klaviyo flows. I hope this helps! Thank you.