Hi there,
I'm building a mobile APP with react-native using Shopify Storefront API, when I going to implement checkout function I face some problem.
In our business model, if customers with specific tag then they don't need to pay money for buying specific collection, so how I implement this is
1. create checkout (checkoutCreate mutation)
2. append 100% off discount code to this checkout (checkoutDiscountCodeApplyV2 mutation)
3. complete checkout (checkoutCompleteFree mutation)
but when checkoutCompleteFree mutation be called, it return error with message "Shipping rate can't be blank", but I didn't see any requirement of shipping rate in document of these mutation, is there anything I doing wrong?
Please help me to solve it, would be appreciated with any suggestion
