Dear Shopify Community, I’m working on 3rd party CarrierService App based on Google Apps Script and carrier service REST API https://shopify.dev/docs/admin-api/rest/reference/shipping-and-fulfillment/carrierservice . At this moment I use the development store type. The CarriersService with callback…

We have the same issue and don’t know how to find the root cause. Could someone from Shopify pick this up?

Unfortunately, Shopify is not very helpful regarding this request. Please let me know, in case this gets solved for you @URLify-me

@Dominik_1 My problem was solved, see here .

Error with Shopify CarrierService App response receiving

URLify-me February 10, 2021, 1:15pm 3

I have the same problem, also tested with Postman, Shopify doesn’t accept the response.

Shopify please help us.

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