Once the Amazon Affiliate Program for Magento 2 extension is successfully installed on the Merchant’s store, Amazon Affiliate tab appears on the left navigation bar of the Magento Admin Panel. The merchant has to retrieve and fill-in the API credentials in the Amazon Affiliate Configuration page of the admin panel.

The admin has to log in the Amazon Affiliate Program account to obtain the following API credentials:

The admin needs these API Key and Secret key credentials to build up the communication between the Amazon marketplace and the Magento 2 store.

To retrieve Amazon API Access Key and Secret Key

1. Access the https://affiliate-program.amazon.com link.
2. Log in with the registered credentials.
   The page appears as shown in the following figure:
   
3. Copy the Id appearing next to the Store field as highlighted in the figure.
   Note: Keep the ID ready to paste it in the Amazon Affiliate Tag key while setting up the configuration setting in the Magento 2 Admin panel.
4. On the Tools menu, click Product Advertising API.
   The page appears as shown in the following figure:
   
5. Click the Sign Up Now button.
   The Sign in dialog box appears as shown in the following figure:
   
6. Enter the login credentials and then click the Sign in button.
   The page appears as shown in the following figure:
   
7. Click the Manage Your Account link.
   The Manage Your Account page appears as shown in the following figure:
   
8. Click the AWS Security Credentials Console link.
   A dialog box appears as shown in the following figure:
   
9. Enter the login credentials, and then click the Sign in using our secure server button.
   The dialog box appears as shown in the following figure:
   
10. Click the Continue to Security Credentials button.
    The page appears as shown in the following figure:
    
11. Click the Access Keys (Access Key ID and Secret Access Key) tab.
    The tab is expanded and the page appears as shown in the following figure:
    
12. Click the Create New Access Key button.
    The Access Key ID and the Secret Access Key are created and appears as shown in the following figure:
    
    Note: Copy and keep the Access Key ID and the Secret Access Key ready to use it while setting up the configuration setting in the Magento 2 Admin panel.