I am a developer in a shipping company that provide shipping services,
We have a custom app on Shopify that our customers can use to ship their orders with our company.
At this stage we need to provide shipping fees for our customers in their store checkouts.
In other words, we need to provide our clients the option for their customers to know the shipping/delivery fees when creating their checkouts.
We have an API that returns shipping fees.
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This is an accepted solution.
Hey @Wassimghotmeh ,
You could set this up with the CarrierService API - https://shopify.dev/api/admin/rest/reference/shipping-and-fulfillment/carrierservice
It allows you to provide real time rates at checkout