UPI Payment Webhooks Explained for Developers

Webhooks decouple the payer’s phone from your server state. Expect at-least-once delivery: implement deduplication keys.

Debugging

• Log response codes from your endpoint
• Use a tunnel in dev (e.g. ngrok) cautiously with secrets
• Replay failed events from a dashboard when available

Detailed payloads live in authenticated documentation. VyaparGateway helps you issue dynamic UPI QR codes, verify payments, and notify your stack via webhooks—without charging a per-transaction platform fee on top of your plan.