CarrierService - Why I am not receiving shipping data at callback url

Shopify Partner
8 0 2

I have a development store and created a private app to get custom shipping rates from a logistics company.


At the time of checkout, the system successfully hits the callback URL but it does not send any shipping information to Callback URL.  Without zip code and item weight shipping rates can't be calculated.


What I am missing here, please help.


Development Store:


CarrierService created:

    "carrier_service": {
        "name""Pricing App V 2.2",
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