international packages regularly have more than one carrier involved. for example, say we ship a package from china to the US. It will start with SFC and then after it is cleared by US Customs, it will be handed off to a last mile delivery service (typically FedEx, USPS or Lasership) The only way to keep the info current for our clients is to manually review the tracking info and manually enter the new tracking number and carrier in the Shopify order when the hand off occurs. Very time consuming and would be incredible if we could automate this