Although you already have an Amazon Product Ads Account, you will need to create a second account in order to use Checkout By Amazon.
Go toCheckout By Amazonto create your account. Select theSell Professionallyoption.
Enter your information into the registration wizard generated by Amazon.
After you create your Checkout by Amazon Account, you mustlinkit to your Amazon Product Ads Account. Follow the instructions in the image below, provided by Amazon.
After your accounts are linked, go to theIntegrationtab in your Checkout by Amazon Account and selectPre-Integrated Cartfrom the drop-down menu.
Write down yourMerchant ID,Access Key IDandSecret Access Keyon yourCBA Worksheetto use in confirguring Payments in your DotFeed account. For an example, review theblue-highlightedinformation in the example below.
In your DotFeed Account, enter the Merchant ID, Access Key and Secret Access Key andSave Configuration.
Go back into your Checkout by Amazon Account and selectSettingsand go toCheckout Pipeline Settings
Find the section called,Instant Order Processing Notification Settings, and selectEdit.