I am trying to use the Admin API to create a checkout following the directions from https://shopify.dev/tutorials/build-a-sales-channel-with-the-checkout-api
I successfully make a POST call to a published product/variant for my site, but I keep getting "errors": "[API] This action requires merchant approval for write_checkouts scope."
My private app configuration has the correct read/write permissions for order (and other data types). I have the Admin API Password as the Header token for authentication.
Am I using the wrong SDK? It keeps mentioning "Sales Channel SDK" and pointing back to private apps within the store.