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7207001790 info@cartzuno.net Fixed scope and fixed fee on every service, GST included

Connected Systems

UPI Checkout and Reconciliation

A complete online payments setup covering UPI, cards, netbanking plus wallets, with verified webhooks, safe refunds and a daily match of settlements against your books.

  • 14 working days
  • Scope published below
  • GST included
  • Ref. CZ-IN-102

Overview

Collecting a payment is easy; the trouble comes later, when a webhook fires twice, a UPI collect confirms ten minutes after the customer gave up, or a refund never reaches your ledger. We connect your chosen payment gateway so orders are created exactly once, every webhook signature is verified, and a scheduled job each night compares gateway settlements with your own sales. Failed payments can be retried without creating duplicates, and if you bill customers on a schedule we set up mandates too. Your finance team stops rebuilding the month by hand.

What you receive

  1. Checkout accepting UPI, debit and credit cards, netbanking and wallets
  2. Duplicate-proof order creation, even when a customer clicks pay twice
  3. Webhook receiver that checks signatures and ignores replays or repeat deliveries
  4. Full and partial refunds available from inside your admin panel
  5. Nightly job comparing gateway settlements against the orders in your system
  6. Recurring billing through mandates or subscriptions where your model needs it
  7. A sandbox test plan that includes deliberately failed and delayed payments

How it runs

  1. Step - 01

    Scoping

    We agree the accepted payment options, currencies and your refund policy up front.

  2. Step - 02

    Sandbox build

    The integration is built in test mode and we force failures to prove handling.

  3. Step - 03

    Matching

    Settlement comparison and reporting are hooked into your ledger or accounting records.

  4. Step - 04

    Launch

    Live keys go in and we monitor the first genuine payments alongside you.

Timeline: 14 working days, counted from the day we receive what we need from you.

Is it a fit?

A good match for

  • Sellers moving from shared payment links to an on-site checkout
  • Businesses losing orders to silent payment failures they cannot see
  • Accounts teams reconciling gateway payouts with sales in spreadsheets every month

What we need from you

  • A verified gateway merchant account with both test and live credentials
  • Decisions on refund rules, GST handling and your invoice number format
  • A person with authority to deploy to production on launch day

Why it helps

  • Duplicate webhook deliveries can no longer create a second order
  • Settlements are matched daily for finance, not rebuilt at month-end
  • Orders still complete when a UPI confirmation arrives late

Questions

We hook payments into how you invoice today and can produce invoice numbers in the format you specify. Decisions on tax treatment remain with your accountant, not with us.

Only if your gateway account has international cards switched on. Where it does, we configure that route and include it in the sandbox test plan.

Yes. We plan the switch, including any existing recurring mandates, so subscribers keep being billed correctly while you change providers.

Pairs well with

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