Your customers' experience of your product can be divided into three categories:
Their experience at sign-up
Their general experience at any time when using the product
Their experience monthly when they are billed
At the time of sign-up, there are two aspects of the customer's experience: the sign-up process and billing confirmation (if your product has up-front charges).
The following figure and table describe the customers' experience during sign-up.

Process for Signing Up
| 1 |
The customer clicks the sign-up link for your product and is sent to a specific sign-up page provided by DevPay and branded with Amazon Payments. For example pages of this flow, see Appendix: The Customer Purchase Experience. |
| 2 |
The customer is prompted to log in using an Amazon.com login. |
| 3 |
The customer views your product's information and pricing. |
| 4 |
The customer signs up for your product. After the product purchase, the confirmation page displays an activation key. The customers are redirected to your web site (to a URL you specify to DevPay when you register your product) for instructions on using the product. |
| 5 |
If the product is an Amazon EC2 paid AMI:
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| 6 |
If the product is an Amazon S3 product:
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If your product has a one-time sign-up fee, a monthly fee, or both, your customers are billed accordingly at the time of sign-up. They each receive an e-mail from Amazon Payments confirming the sign-up charge (for more information, see When the Customer Signs Up to Use Your Product).
At any time, customers can use the product and also view their usage and billing information. The following figure and table describe the process for the latter.

Process for Viewing Usage and Billing Information
| 1 |
The customer goes to your web site and clicks the link you provide for managing the product. |
| 2 |
The customer is prompted to log in using an Amazon.com login. |
| 3 |
The customer views the Application Billing page (for more information, see Where Customers Get Information About Their Bills). |
Customers can cancel at any time. For more information, see Customer Cancellation.
You might decide to change the price of your product at any time. For more information about how this affects customers, see Your Customers' Experience of a Price Change.
Customers are billed monthly (for more information, see When Customers Are Billed) and receive monthly e-mails from Amazon Payments showing the billing amount (for more information, see When the Customer Is Billed Each Month).