Hello,
If someone subscribes to shopify newsletter I got a doube double opt-in. One from Shopify and one from Klaviyo.
When I am disable Shopify double opt-in then It shows me on the costumer as marked that he/she subscribed to the newsletter.
When I disable Klaviyo double opt-in then I have two lists with Klaviyo Newsletter and Shopify Newsletter. But I want one flow for both Newsletter. If someone subscribeds to Shopify-Newsletter and Klaviyo-Newsletter then he or she has “longer” discount.
Because if someone subscribes to the Newsletter, I give him/her free shipping.