You or your developers will need to create an app that does the following:
- Your App POSTS dollar amount, email address, and a unique customer ID to @Pay.
- Your App receives the HTML/CSS code for an Instant Button for display on your site or email campaign.
- When a custom selects the Instant Pay/Instant Buy option, the payment email will enter out authentication service for authorization.
- Your App will need to be able to receive our web hooks indicating either a successful or unsuccessful authentication.
- Successful authentication should trigger completion of the payment process through your already existing services.