Merchants can use the Omnichannel API to request and accept payments from customers through Google Pay by requesting a single identifier (like a phone number) in their purchase flow. This API provides a server-side interface for merchants to initiate a payment call to Google and complete the payment process for a purchase, making it compatible with various platforms.
Requesting and accepting payments from your customers using the Omnichannel API generally involves the following steps:
- Merchants pre-populate the user's phone numbers (or ask for input) on their app or website.
- Once the user confirms the populated information, the merchant makes a server call to request payment
- The Google Pay app directs the user to complete the payment.
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The merchant verifies the payment status with their PSP before proceeding to confirm the purchase. The merchant can also poll on the transaction status from Google to confirm the status.
