Everything You Need to Call Amazon SP-API

In Order to call Amazon Selling Partner API (SP-API) You need to follow this Step by Step guide.

1. Go to Amazon Seller Central SignUp and Create New Account (skip this step if you already have account)
2. Go to AWS console SignUp or LogIn (if you already have account)
   Create Iam User Iam Role and Iam Policy
3. After Signing In Select:
   Menu (top left panel) > Apps and Service > Develop Apps
   Click on + Add new Client App
4. Choose App name, Select API Type : SP API Paste the Iam Role created in step 2
5. You need to Self-authorize or a third-party OAuth workflow.
6. Import Sp Api Collection to Postman
7. Generate STS and Access Token to call Sp Api Postman/Rails