Business Messaging API Integration
Order updates, reminders and support replies over an official business messaging API, with approved templates and tracked delivery.
Business verification and messaging API account setup
₹22,999
Payment Gateway Integration
End-to-end payments across UPI, cards and netbanking, with webhooks and reconciliation engineered for real-world traffic.
Overview
What this engagement is
Accepting a payment is straightforward; the difficulties arrive afterwards. Webhooks are delivered twice, a UPI collect request is approved ten minutes late, or a refund never reaches your ledger. We integrate your chosen payment gateway thoroughly, with idempotent order creation, signature-verified webhooks and a daily reconciliation job that matches gateway settlements against your own records. Failed payments retry cleanly instead of quietly losing the order, and subscriptions or mandates are included wherever you need them.
Deliverables
What you receive
- Complete integration covering UPI, cards, netbanking and wallets
- Idempotent order creation resilient to duplicate submissions
- Signature-verified webhook handling that is safe to retry and replay
- Refund and partial refund flows connected to your admin tools
- Daily reconciliation job matching gateway settlements to your records
- Subscription or mandate setup where recurring billing is needed
- Sandbox test plan, including deliberately triggered failure cases
Outcomes
What changes once it ships
Duplicate webhooks no longer produce duplicate orders
Finance receives a daily reconciliation instead of a month-end reconstruction
Late UPI confirmations complete the order rather than losing it
Process
How the 4 stages run
Scope
Payment methods, currencies and refund rules are confirmed
Build
The integration is developed in the sandbox with failures deliberately forced
Reconcile
Settlement matching and reporting are linked to your ledger
Go live
Production keys are deployed and the first live transactions monitored together
A strong fit for
- Businesses moving from payment links to a complete checkout
- Products where failed payments are silently eroding revenue
- Finance teams reconciling gateway settlements manually every month
What we need from you
- A gateway account with KYC completed, plus sandbox and live keys
- Clarity on refund policy, GST treatment and invoice numbering
- An engineer or administrator able to deploy to production on go-live day
You share these through the brief that opens in your client dashboard once payment is confirmed. The timeline starts when they arrive.
Answers
Questions about this engagement
We connect the integration to your invoicing logic and can generate compliant invoice numbers. Tax advice remains with your accountant.
Yes, where your gateway account is enabled for them. We configure and test that path.
Yes. Migrations, including stored mandates, are planned carefully so recurring customers experience no disruption.
This is a digital service — nothing is shipped. Work is delivered to the timeline above, into systems you control, and our refund terms explain what happens if a date is missed.
Often paired with
Engagements that work well alongside.
ERP to Web Application Sync
Dependable two-way data exchange between your ERP and website, governed by clear conflict rules and a fully auditable log.
Sync service between your ERP and web application, one-way or two-way as scoped
₹39,999
REST API Design and Documentation
A versioned API contract with OpenAPI documentation, worked examples and a mock server partners can build against immediately.
OpenAPI 3 specification covering up to 40 endpoints
₹18,999