I m developing an app in which client demands to integraTE carrier service api but this feature is only supportive for advanced store how can i develop an app which should calculate shipping charges for a basic shopify stores..
is there any other solution for it rather than to upgrade every store to advanced...e-g if i write script tags in which i make request to my own server , calculate charges from DHL express service for specific products and zones then return it to storefront and update the cart..?
The CarrierService API is available on Basic Shopify also, if the plan is paid annually.
The carrier calculated shipping feature is available for free for the annual subscription for any plan or available for an additional $20/month along with your current monthly plan.
If you are on the advanced plan, then its available for free monthly.