@FurnaceX awesome! Thanks for the tip! React/Shopify are new to me so this is EXACTLY why I posted here. What about the ValidateRequest() method from the koa-shopify-auth lib? if you drop that middleware in per the tutorial, does it play nice?

So I got to the very last part of the awesome tutorial and am now receiving the following error when implementing the instructions here:https://shopify.dev/tutorials/build-a-shopify-app-with-node-and-react/listen-for-store-events-with-webhooks#create...