Pakistani merchants running ERPNext on Sales Invoices quickly hit a wall at the payment step. ERPNext ships payment gateway integrations for the likes of Razorpay, Stripe, and PayPal, but there is no native Easypaisa connector — so cashiers and accountants end up copying transaction IDs out of the Easypaisa merchant portal or SMS confirmations and hand-keying Payment Entries against invoices. That manual bridge is where money leaks: mismatched references, double-posted receipts, payments applied to the wrong customer, and month-end reconciliation that drags on because the mobile-wallet ledger never automatically lines up with the ERPNext General Ledger.

The ECOSIRE ERPNext Easypaisa Payment Connector is a proper Frappe app (its own module, DocTypes, and hooks.py) that plugs Easypaisa directly into your ERPNext payment flow. We register a Payment Gateway record and integration settings DocType (with the merchant account, store ID, and API/HMAC secret keys stored encrypted as Password fieldtypes) so Easypaisa becomes a selectable gateway on the Sales Invoice and web checkout. When a customer chooses Easypaisa, a whitelisted server method (@frappe.whitelist()) generates a hosted checkout link or payment request against the Easypaisa API and returns it to the portal or POS screen. Nothing is trusted from the browser redirect alone.

Confirmation is handled server-side. A dedicated webhook endpoint receives the Easypaisa payment-status callback, verifies the signature/checksum, looks up the originating reference, and — on a genuine PAID event — creates and submits a Payment Entry against the correct Sales Invoice, sets the reference number and mode of payment, and posts to the configured bank/wallet clearing account. The whole flow is idempotent: duplicate callbacks are de-duplicated on the transaction ID so a retried webhook never double-posts. A scheduler event (registered under scheduler_events in hooks.py) runs a reconciliation sweep that reconciles or flags any transactions where the callback was missed, keeping the Easypaisa ledger and ERPNext GL in agreement. Refunds initiated from ERPNext post a reversing entry and, where the Easypaisa API supports it, trigger the refund request; transaction fees are mapped to a configurable expense/charges account so your revenue reporting stays clean.

Because this is built to order, ECOSIRE tailors the connector to your exact ERPNext version (Frappe/ERPNext v15 or v16), your chart of accounts, and your Easypaisa merchant contract — one-time payment links, recurring collection, or POS-side flows. We do not sell an anonymous marketplace download and there is no instant-download button. After a short scoping call we confirm the requirements, build against a staging copy of your site, run UAT with you, and then install on production. Typical delivery is one working week from confirmed scope, and every engagement includes source code, documentation, training, and a post-go-live support window.