3rd Party Shipping Rates

New Member
3 0 0

I have created a Carrier Service and the callback_URL provided to Shopify, which Shopify will need to hit to retrieve applicable rates. So the problem is that yes Shopify post a request to the callback URL to retrieve the rates, but it only return one rate response instead of the multiple rates to show to the customer at checkout. Please advise what could be the problem or is it because we restricted to multiple rates according to Shopify plans if we only on the “Developer Preview/Monthly” plan??