API Integration Company in
Pune
The unsexy work that keeps Pune operations honest: Tally vouchers, Razorpay webhooks, e-invoice IRN, Shiprocket, and the CRM your sales team actually uses—with retries and a recon report.
Pune companies do not have an “API problem.” They have a reconciliation problem.
A webhook that “usually works” is how Hadapsar traders discover missing Razorpay settlements at month-end. Unitas treats integrations as products: idempotency keys, dead-letter queues, and a screen a clerk can replay. We know Tally’s XML/JSON surfaces, Indian PG quirks, and that GSTN sandboxes do not behave like production on a Friday evening.
If you need a full ERP, see the ERP page. This page is for connecting systems you already paid for.
Key Highlights
- Idempotent consumers (payments, IRN, logistics scans)
- Human replay UI for failed jobs
- Contract tests against sandbox + a recorded production cassette
- IST monitoring when UPI spikes at 8 p.m.
Connectors Pune teams actually ask for
We will not list 200 logos. These are the ones that show up in Maharashtra SMEs and GCCs.
Tally Prime
Masters and vouchers. We agree ledger mapping with your CA before writing the first POST.
Razorpay / Indian PGs
Orders, webhooks, refunds, and settlement files. Missing events are a feature of the world; recon is the product.
E-invoice / e-way
IRN, QR, cancellations. Workers, not request-thread calls from the billing screen.
Logistics (Delhivery, Shiprocket, etc.)
Create shipment, map statuses to your order machine. Duplicate AWBs handled.
CRM / helpdesk (Zoho, HubSpot)
Contacts and tickets. We fight two-way sync loops on purpose.
Your own APIs
OpenAPI, keys, webhooks for partners in Pune’s auto belt. Docs a junior integrator can follow.
Integration-heavy Pune settings
Not the same list as ERP or React. These buyers already have systems.
D2C and marketplaces
Orders in from Amazon/Shopify, inventory out, Tally last. Sequence matters.
Distributors
B2B portal + Tally + transporter. Credit and GST must agree.
GCCs
ITSM, HRIS, and identity. Security review is the project.
Clinics & labs
LIS/HIS plus WhatsApp reports. PHI handling is scoped; we are not a hospital vendor of record.
Failure modes we design for
Double webhook
Razorpay retried; naive code created two orders. Idempotency key on payment_id. Accounts saw one invoice.
Tally company locked
Night job failed because a CA had the company open. Queue paused with a Hadapsar-friendly alert, not a silent skip.
GSTN timeout
IRN worker retried with backoff; UI showed “pending IRN” instead of lying that the invoice was final.
How an integration project runs
Mapping before code. Sandbox before production keys.
System census
What is source of truth for SKU, party, and money. Arguments happen here, not in week six.
Field dictionary
GSTIN, HSN, UOM. We print it. Pune ops signs it.
Happy path + poison messages
We implement the ugly 20% first so UAT is not a surprise.
Recon harness
Daily report: gateway vs orders vs Tally. Someone owns exceptions.
Runbook
Who replays, who calls the vendor, what “stuck 2 hours” means.
Why not Zapier-only
Zapier is fine for a newsletter list. It is not fine for GST invoices and stock. We will use iPaaS at the edges; money paths get engineered.
Replay is a UI
Clerks in Pune should not SSH. Failed jobs have a button and an audit line.
CA in the loop
Ledger mapping is a workshop, not a developer guess.
Observability
Correlation IDs from web checkout to Tally voucher.
Honest scope
If you need a new system of record, we point you to ERP or custom software.
Integration snapshots
Connective tissue—not a new product UI story.
Shopify → inventory → Tally
Stock decremented from a warehouse app; Tally sales vouchers batched nightly with a recon of gateway fees.
Portal credit vs Tally outstanding
Nightly outstanding pull; dealer portal blocked over-limit orders. Credit manager got an exception digest at 8 a.m.
Integration pricing
Priced per boundary and failure design, not per logo on a slide.
Single connector
One well-behaved API, sandbox, recon, runbook.
- Idempotency
- Alerts
- UAT
- Docs
Money path (PG + books)
Payments plus Tally or accounting, with settlement recon.
- Webhooks
- Refunds
- CA workshop
- Month-end report
Multi-system spine
Three or more systems, a small bus or workflow, and an ops UI.
- Census
- DLQ UI
- On-call notes
- Load considerations
Frequently Asked Questions
Specific to Pune Solutions
When integration is not enough
Explore sibling services across Pune & Maharashtra
Send a list of systems and who is source of truth for money.
We will mark each flow as integrate, replace, or leave—before anyone writes a webhook.