Hello @Squamishpoacher,

Welcome to the Klaviyo Community!

Although I wouldn’t entirely say that the cookie policy is fully “suppressing” your add to cart flow, in my experience, it certainly does impact the reported number of add to cart events from Google Analytics when compared with who actually triggers the event in Klaviyo. This is because Google Analytics will typically report all users who’ve done something - including unknown/uncookied site visitors. 

Also, it’s typically for an abandoned cart flow (ATC/Checkout Started) to have more users being skipped than actually receive the flow. Similar to how the abandoned cart flow triggered by the checkout started event behaves as mentioned in our Getting started with the abandoned cart flow Help Center article:

It is important to note that everyone who starts a checkout will enter the flow. If they go on to place an order, they will be skipped. For this reason, you will typically see a large number of people who enter the flow being skipped due to "failing flow filters." This is actually a good thing and simply means the flow is functioning correctly by not sending abandoned cart emails to people who placed an order.

When applied to the abandoned cart flow triggered by the add to cart, everyone who triggers an add to cart event will enter the flow, but if they proceed to either trigger the checkout started event or placed an order, they would be skipped. 

I’ve explained this expected behavior in a previous Community post which I’ve included below along with several other resources that I think you’ll find helpful in reviewing:

I hope this helps!

David

Thank you for the reply and the link to past resources.