If you outsource dyeing, plating, cutting, stitching, or PCB assembly, ERPNext's native Subcontracting works well for a single hand-off: one Subcontracting Order, one raw-material transfer, one receipt. But real outsourced routing is rarely one step. A greige fabric goes to a dyer, then to a printer, then to a stitching unit — and native ERPNext gives you no first-class way to chain those stages, to track work-in-progress sitting at vendor two while vendor one is already paid, or to reconcile the kilos you supplied against the kilos that came back plus the scrap that didn't. Finance ends up in spreadsheets, and the shop floor loses visibility of goods it still legally owns but can't see.

Subcontracting Pro is a proper Frappe application (its own module, installed via bench get-app and bench install-app) that extends ERPNext's manufacturing and stock domains rather than fighting them. We model each outsourced route as a chain of Subcontracting Stage DocTypes linked to a parent job, so the output of stage one becomes the supplied input of stage two automatically. A Supplied Material Reconciliation DocType nets issued quantity against returned finished goods, expected consumption, and declared scrap — with hooks.py on_submit doc events posting the resulting stock and value adjustments through standard Stock Entries so your inventory valuation and GL stay correct. Per-vendor Subcontractor Rate Card records hold operation rates and turnaround SLAs; a scheduler_events (cron/daily) job flags jobs that have breached their promised turnaround so nothing silently ages at a supplier.

On the technical side we build the way you'd build it yourself if you had the time: DocTypes with proper naming series and permissions, role profiles (for example a Subcontracting Manager role) so only the right people submit reconciliations, client scripts for the in-form calculations, and server scripts / whitelisted methods exposed over the Frappe REST API so your other systems can create jobs and pull WIP status programmatically. Country-specific job-work challans (India GST Rule 45 / ITC-04 style delivery challans, and configurable delivery-note formats for other jurisdictions) are generated as Frappe Print Formats you can brand and localize. Everything is native ERPNext — upgrade-safe, in your own bench, with no lock-in.

Because this is built to order, you are not downloading a generic marketplace app and hoping it fits. After a short scoping call we confirm your exact stages, reconciliation rules, challan format, and integrations, then build against your ERPNext version (v15 or v16). Typical delivery is 2 to 4 weeks from confirmed scope. We deliver on a staging site for UAT first, hand over the full git repository and technical documentation, run a training session with your team, then install to production and support you through go-live and a defined post-launch window.