Amazon Pay provides Amazon customers a secure, trusted, and convenient way to sign in and pay for their purchases on your site. Customers use Login with Amazon to share their profile information (name, email address, and postal code) and get access to their shipping address and payment method stored in their Amazon account to complete their purchase.
This guide provides details on enabling recurring payments for subscriptions or other regular payments scenarios by using the API-based integration called Amazon Pay and Login with Amazon, which provides a greater degree of flexibility and customization to meet your payment needs.
With the recurring payments feature, customers can pre-authorise payments for future purchases, letting you charge a customer's Amazon account on a regular basis for subscriptions and usage-based billing without requiring the customer to authorise a payment each time.
Note: The Amazon Pay service has been designed and developed for use within a web browser only. Our service cannot be used within a native application (including, without limitation, iOS, Android, RIM and Windows operating systems). Amazon Pay reserves the right to suspend the payment account of any user of our services that has implemented our service within a native application.
The following are the prerequisites for the Amazon Pay and Login with Amazon service:
- Previous experience using web service APIs.
- Familiarity with the Seller Central portal.
- The ability to handle asynchronous processing of payment requests. For more information, see Synchronizing your systems with Amazon Pay.
- A Seller ID (also called a Merchant ID) for an Amazon Pay Seller Account. The Amazon Pay Seller account must have the Amazon Pay and Login with Amazon service provisioned. You can create an Amazon Pay Seller account by signing up for Amazon Pay and Login with Amazon from the Amazon Pay website.
- Access to your Amazon Marketplace Web Service (Amazon MWS) Access Key and Secret Key. To get these keys, register with Amazon MWS or authorize a developer to make calls on your behalf, using their keys. For more information, see Registering to use Amazon MWS in the Amazon MWS Developer Guide.
- Register your website as an application on the Login with Amazon App Console. For more information, see the Login with Amazon Getting Started Guide. Registering your website sets a client identifier (Client ID), which you need for your integration.
How does Amazon Pay and Login with Amazon work?
Amazon Pay and Login with Amazon is embedded directly into your existing website, and all the customer interactions with Amazon Pay and Login with Amazon take place in embedded widgets so that the customer never leaves your site.
The product consists of two parts, the Login and the Amazon Pay services, which are technically closely related and run on the same platform:
- Login with Amazon lets your customers become registered users just by signing in with their Amazon login credentials. Amazon Pay then transfers user information to you that lets you create a local account for the customers. Users that register this way are your customers, and you get the real customer email address and can contact them directly.
- Amazon Pay represents a checkout that is fully integrated into your site by means of widgets that Amazon Pay provides to you. In this Amazon checkout, which is part of your website, the customer chooses a shipping address and payment method that they already have stored in their Amazon user accounts. Regardless of whether or not the customer previously used Login with Amazon, you can offer Amazon Pay as a guest checkout, a registered checkout with implicit account creation, or both. In the latter case, you leave the choice to the customer.
Using Amazon Pay and Login with Amazon, your customers can become registered users and check out with a few clicks, saving them from entering a lot of information.
The end-to-end Amazon Pay and Login with Amazon experience is designed to make checkout for one-time or recurring purchases easy and secure for customers and payment processing easy and secure for you. Before you start integration, you should familiarize yourself with a few key concepts regarding this service.
When you integrate with Amazon Pay and Login with Amazon, you embed button widgets on your site to create a login and checkout experience for customers. Depending on the button widgets that you choose, you can obtain customer information such as name, email address, and postal code before, during, or after customers begin the checkout process on your site. The following chart explains more about each button widget option:
Login with Amazon
Use this button to let customers sign in to your site and pay using their Amazon accounts. Customers can sign in before, during, or after they begin the checkout process. Customers can share with you their profile information (name, email address, and postal code) and access the shipping and payment information stored in their Amazon accounts to complete their purchases on your site.
After a customer signs in with their Amazon account credentials:
This button should be used in the following examples:
Customers see a consent screen the first time they sign in to your site with their Amazon accounts. The consent screen requests each customer's permission to share the following information with you:
If a customer decides to not share their information with you, the authentication token throws an error response message of access_denied. The customer can't register on your site via Amazon Pay and Login with Amazon or access payment and shipping information from their Amazon account. Of course, the customer can go through your seller's standard account registration process.
Amazon Pay (guest checkout)
Use this button to let customers complete a one-time or recurring transaction by using the shipping and payment information stored in their Amazon accounts without sharing any profile or contact information with you before completing a transaction.
When a customer signs in and chooses a shipping address from their Amazon account, you receive only their city, country, and postal code for tax and shipping calculation purposes.
After a customer completes the checkout process using their Amazon account, you receive their name, email address, and full shipping address. If a customer does not complete the checkout process, you do not receive the customer's information.
Customers do not see a consent screen when they sign in using Amazon Pay.
Amazon Pay (access to full shipping address)
Use this button to let customers sign in to your site and pay using their Amazon credentials while sharing their profile information and full shipping address with you before completing a transaction.
After a customer signs in with their Amazon account credentials:
This button should be used in the following examples:
Customers see a consent screen the first time they sign in using Login with Amazon on your site. The consent screen requests each customer's permission to share the following information with you:
An access token is granted by the authorization server when a user signs in to a site. An access token is specific to a client, a user, and an access scope. A client must use an access token to retrieve customer profile data and allow access to shipping and payment information.
Payment objects are the building blocks that support the Amazon Pay with and Login with Amazon payments process. The following objects are referenced throughout this guide:
- Billing Agreement object — This object is a record of the customer's preferred payment method, preferred shipping address, and authorization for a recurring payment. The customer determines some of these attributes as they go through the checkout process (for example, the shipping address and payment method), and you set some of the attributes with information about the order and/or subscription.
- Order Reference object — This object is a record of each purchase made by the customer. For a recurring payment, this object is created when you process a payment for a particular recurring purchase. The payment method and shipping address (if specified) are derived from the Billing Agreement object.
- Authorization object — This object represents the availability of funds in the chosen payment method and reserves them for future collection using a Capture request.
- Capture object — This object represents the movement of funds from the customer's payment method to your Amazon Pay Seller account.
- Refund object — In the event of a refund, this object represents the movement of previously captured funds back to the customer.
Each of these objects is identified by a unique identifier and has a status. You will learn more about using these objects in the next section of this guide.
Widgets are Amazon Pay-hosted controls that you can embed in your site. They enable the customer to sign in to your site, authenticate using their Amazon credentials, view the address and payment methods stored in their Amazon account, and choose the ones that they want to use for their purchases. The chosen address and payment method information is stored in the Billing Agreement object and copied to the Order Reference object.
You can use five widgets when integrating with Amazon Pay and Login with Amazon:
- Login with Amazon button: This widget enables customers to sign in to your site using their Amazon accounts before, during, or after they begin the checkout process. Amazon Pay suggests placing this widget in a prominent location, such as on the homepage of your site. The following image shows the Login with Amazon button widget:
- Amazon Pay button (optional if you are using the Login with Amazon button): This enables a customer to choose Amazon Pay for their payment and to authenticate with their Amazon credentials. You typically place this on the page where a customer initiates the checkout process (for example, from your shopping cart or product detail page). The following image shows the Amazon Pay button widget:
- AddressBook widget (optional): The AddressBook widget shows the addresses stored in a customer's Amazon account. You can replace the manual entry forms that you use to collect addresses from the customer with this widget. The following image shows the AddressBook widget:
- Wallet widget (required): The Wallet widget shows the payment methods stored in a customer's Amazon account. You can replace the manual entry forms that you use to collect payment method information from the customer with this widget. The following image shows the Wallet widget:
- Authorize Recurring Payments widget (required for recurring payments): This widget enables a customer to agree to be charged on a recurring basis for a subscription or recurring bill payment. Amazon Pay recommends that you place this widget before the Subscribe or Place Order button on your site. The following image shows the Authorize Recurring Payments widget:
Application Programming Interfaces (APIs)
You call the operations in the Amazon Pay API section to exchange information and instructions between Amazon Pay and your internal systems. For example, you call these operations to obtain customer profile information, request Amazon Pay to charge the customer, issue a refund, get the customer's shipping information, or cancel a billing agreement. For more information, see the Amazon Pay API reference guide.
Instant Payment Notifications (IPNs)
Amazon Pay often processes your payment requests (Authorize, Capture, and Refund requests) in an asynchronous manner. After Amazon Pay processes the request, you receive a notification, called an Instant Payment Notification (IPN), which notifies you of the final status of the request.
Additionally, the status of a payment object can change because of a request submitted by you or because of an internal Amazon Pay business rule. If the status of a payment object changes, Amazon Pay sends an IPN to you so that you can keep your system in sync with Amazon Pay. For more information, see Synchronizing your systems with Amazon Pay.
Amazon Pay and Login with Amazon Recurring Payments integration guide
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