Service
Virtual account and VietQR
Each payer gets an identifier. Funds settle to the enterprise main account with a trace of who paid.
- va_8100 creates, va_8200 updates limits and the time window, va_8300 deletes.
- gen-viet-qr builds a QR for an amount and a remark.
- On a credit, Fintwin calls the enterprise webhook. The enterprise must answer to confirm it received the notice.
The credit webhook field table is still being confirmed. The webhook page describes the event and the call direction, and does not invent field names.