Hey folks.... I am currently testing around with carrierService requests to a callback_url to fetch shipping rates for the checkout but unfortunately i do not see any requests to my url and shopify sets the shipping rate to the value i set as fallback.. when i POST to the provided url, i see a response which looks as described in the docs. what am i doing wrong? any hints in general or could someone help me perhaps with some logfile insights (can send you more detailed data in that case if required).
