How can I calculate shipping rates automatically using Postal Codes?

[Daedus]

My store uses Google Places to auto-fill shipping addresses. I'd like to use the Postal Codes of buyers to automatically calculate shipping rates--which I fulfill myself--at checkout.

I've set up conditions for the range of Postal Codes (ie M***** for geographical Postal Codes starting with M) but it doesn't work.

The problem is that customers are choosing the cheapest shipping rate when they're located elsewhere because it's the default rate. I don't have Shopify Plus. Could this be the problem?

My store is www.cosechaimports.com

[Ecommpremium]

yes @Daedus You need to have the carrier-calculated shipping feature on your store's Shopify subscription plan to connect your own shipping carrier accounts to Shopify. This feature is included in the Advanced Shopify and Shopify Plus plans, and can be added to any plan for a monthly fee.

please visit this link for service activation and after this activation you can use this app to put your desired post code