Amazon pay configuration

1. Sign in to your admin panel.
2. Go to the System>Payments gateways from the sidebar.
3. Click the plus button (install button) next to the Amazon Pay and Login with Amazon.
4. Click the Edit button and enter values in the fields listed below (the values can be found in your Amazon account in Seller Central under Integration > MWS Access Key).
   • Merchant ID (Seller ID)
   • Access Key
   • Secret Key
   • Client ID
   • Client Secret
5. Set the Test Mode to Sandbox if you intend to test first in Sandbox mode, or Live if you would like to launch in Production mode.
6. Copy IPN URL to Seller Central under Settings > Integration Settings > Merchant URL in your Amazon account.
7. Set status to Enabled and press Save button 
8. Go to System>Extensions>Extensions>Modules from the sidebar.
9. Install the Login with Amazon button

   Edit settings:  set the status to Enabled.

10. Install the Amazon Pay button

    Edit settings: set the status to Enabled.

11. Go back to the System>Payments gateways>Amazon Pay and Login with Amazon:
    1. To capture funds on order, set Payment Mode to Payment.
    2. To authorize only on order, set Payment Mode to Authorization.
    Note: Orders can be captured at the time of purchase or can be authorized only for later capture.
12. Go to  My store>Theme>Theme sections:
    1. Click the edit button next to the Checkout page
       
    2. Add the Login with Amazon module to the Above Content sections  and press "+ button"
    3. Add the Amazon Pay module to the Above Content sections  and press "+ button"
    4. Press Save button in the top right corner