Overview
The funds transfer flow is used to handle payments using a single message
communication. In contrast to the
reserve capture flow, this flow does not first
reserve the funds and then capture them. A single request is made to initiate
money movement and a SUCCESS of this step starts the process to capture the
funds.
This flow primarily revolves around a call to
capture
which is a method that is implemented by the Payment Integrator. This method
attempts to initiate the capture of the funds and synchronously returns the
result.
Acquirer reference number
The ARN (Acquirer Reference Number) is usually not known to the Payment
Integrator until a few days after the capture is initiated. Once the value is
known, the Payment Integrator must call the Google hosted
setAcquirerReferenceNumberForCaptureNotification
to provide the ARN to Google. Associating the ARN with this transaction allows
Google to handle disputes and fraud related to this transaction.
Subsequent operations
After the funds are moved, the payment may be refunded by Google with a call to
the Payment Integrator hosted
asynchronousRefund
method. The user or issuing bank can also start the chargeback process which is
handled through the dispute flow.