ERPNext gives you Purchase Orders, Purchase Receipts, and a basic Quality Inspection DocType, but supplier quality engineers quickly run out of road. There is no rolled-up defect PPM per vendor, no formal SCAR (Supplier Corrective Action Request) lifecycle with 8D-style containment and root-cause fields, and no weighted scorecard that blends quality, on-time delivery, and cost into a single grade you can defend in a supplier review. Teams end up exporting Purchase Receipt and Quality Inspection data into spreadsheets every month, which breaks the moment your Approved Vendor List and qualification status need to gate actual procurement decisions.

ECOSIRE builds a proper Frappe app (supplier_quality) installed onto your bench, not a pile of custom fields. It ships new DocTypes — Incoming Inspection, Supplier Corrective Action Request, Vendor Scorecard Period, and Approved Vendor — linked to standard Supplier, Item, and Purchase Receipt records so nothing is duplicated. Inspection results captured against a receipt line write reject quantities and defect codes back through hooks.py doc events (on_submit, validate), and scheduled events (scheduler_events in hooks.py) aggregate rejects into defect PPM and reject-rate figures per supplier and per item on a nightly or period cadence. A failed inspection can auto-raise a SCAR and route it through a Frappe workflow (Open → Containment → Root Cause → Corrective Action → Verification → Closed) with due-date reminders and assignment.

Weighted scorecards are computed server-side: you configure the weights (e.g. quality 50%, delivery 30%, cost 20%) and the app rolls each supplier's period metrics into a graded score, surfaced on dashboards and a print-format scorecard PDF you can send to the vendor. Whitelisted methods exposed over the Frappe REST API let your other systems pull a supplier's current grade or push inspection data, and client scripts add in-form buttons (raise SCAR, view trend) on the Supplier and Purchase Receipt forms. Access is governed by permissions and a dedicated "Supplier Quality Engineer" role profile so procurement, quality, and management each see the right slice.

Because this is build-to-order, nothing ships until we agree on scope. We start with a short scoping call, confirm your defect taxonomy, scorecard weights, SCAR stages, and AVL rules, then build against Frappe/ERPNext v15 (and v16 where you are already migrated). Typical delivery is one working week from confirmed scope. You get the installable app source, a UAT pass on your staging bench with a rollback plan, a documented handover, and a post-go-live support window — not a black box.