We use a Klaviyo pop up form to allow customers to become a member. When you become a member you receive free shipping with every order. At the moment it's just set up as entering a Shopify discount code to receive the free shipping but this is a rubbish customer experience and I want it to be automatically applied.
The ideal scenario is that we have a segment in Shopify that are identified as members and with this list they have a discount code applied to always receive free shipping so whenever they get to checkout it doesn't show.
I have Klaviyo and Shopify integrated but it seems bizarre to me that I can't create a dynamic list within Shopify of people who are in a specific list in Klaviyo. When speaking with Shopify support they mentioned I could export this list into Shopify but I want it to be automated and assume this would be done via an API but I'm not sure on how to set that up.