I have the same question. When transitioning from my storefront to the checkout, I can input the email and shipping addresses from the user (via the customer acces token). Ideally, I'd like users to be automatically logged in during the Shopify check...

We are experiencing an issue with the tracking code that is pushed from our fulfillment center through the API to our Shopify system. We have two shipping options: Standard (DHL) and Fast (UPS). But the tracking link that is being sent with the track...