How to integrate UPI payment gateway in a website?

Configure the engine to map real estate token plans/charges to the correct RBI/NPCI UPI purpose code in its product/payment settings.

When generating the UPI intent/collect request, auto-attach this purpose code into the transaction metadata sent to the PSP/gateway.

Persist the tagged code on the invoice, payment record, and settlement entries, and expose it in exports/reports to simplify audits and regulatory checks.

At the time of initiation, the engine should check the transaction category and amount against a real-time UPI limit master for Real Estate Token payments.

If eligible for a higher cap, it should show a dynamic in-app/checkout message confirming the enhanced limit before UPI intent creation.

This check for eligibility needs to be API-driven, configuration-controlled, and audit-logged for compliance.

Set a retry policy with exponential backoff and a strict max retry count per UPI token transaction (e.g., 3–5 retries).

Drive throttling from p95 latency, timeout, and error-rate metrics from the gateway/UPI PSP, when thresholds breach, auto-reduce parallel calls.

Add a circuit breaker that temporarily blocks new retries, queues pending requests, and raises alerts to ops/finance until latency stabilises.

The POS should, at payment initiation, check the transaction type and amount against a real-time UPI limit table for real estate token payments.

If eligible, it must display an on-screen banner/toast saying the payment qualifies for an enhanced UPI cap before the customer confirms.

This decision and message should be driven by config/API flags and logged with the transaction for audit.

Configure an exponential backoff retry policy with a hard max retry cap per token transaction (e.g., 3 attempts).

Link throttling to real-time latency and error-rate thresholds from the UPI gateway.

When thresholds breach, auto-reduce concurrency and activate a circuit breaker to pause retries and queue requests.