I am using the Amazon Seller Developer SP-API with a developer account set as a private seller. I've created an app that's currently in draft status. When attempting to retrieve estimated fees using the SP-API, I'm encountering an 'Unauthorized' error with the message 'Access to requested resource is denied.' How to resolve this issue and gain authorized access to the requested resource?
What I've tried:
I have made the following attempts to resolve the issue:
Checked my app configuration on the Amazon Seller Developer portal to ensure it's correctly set up.
Reviewed the SP-API documentation and made sure I'm using the correct endpoints and parameters for estimating fees.
Verified that the necessary permissions and authorizations are in place for the app within the Amazon Seller Central.
Expectations:
I expected that, I would be able to make SP-API requests to retrieve estimated fees without encountering the 'Unauthorized' error.