ERPNext gives you accounting, inventory, and purchasing, but the moment you actually run vehicles it runs out of road. Core ERPNext ships only a thin Vehicle DocType and a Vehicle Log tied to the Expense Claim flow — there is no license-expiry alerting, no preventive maintenance scheduling, no driver-assignment lifecycle, and no fuel-efficiency analytics. Fleet operators end up tracking insurance renewals, fitness certificates, and service intervals in spreadsheets that live outside the system that holds their costs. Missed a registration renewal or an oil-change interval and the fleet is off the road or paying for it later.

ECOSIRE closes that gap with a proper Frappe app (its own module, not a pile of customizations) that installs cleanly onto your bench alongside ERPNext. We model the domain as first-class DocTypes — Fleet Vehicle (extending the native vehicle concept with document sub-tables for registration, insurance, fitness, and permits, each carrying an expiry date), Driver Assignment, Fuel Log, Maintenance Schedule, Maintenance Log, and Trip Log. Business logic lives where Frappe expects it: hooks.py document events (validate, on_submit, on_update) enforce rules like preventing a vehicle from being assigned to a driver whose license has expired, and recalculating mileage and cost-per-kilometre from odometer deltas on every fuel entry. Server scripts and whitelisted methods expose the numbers to ERPNext dashboards; client scripts drive in-form UX such as auto-filling the last odometer reading.

Time-based automation runs on Frappe's scheduler_events — a daily job scans every document sub-table and raises alerts (in-app notification, email, or ERPNext ToDo) at your configured lead times before insurance, registration, or license expiry, and generates the next Maintenance Schedule occurrence from mileage or calendar intervals. Everything is permission-aware: we ship role profiles (for example Fleet Manager and Driver) with DocType-level and field-level permissions so drivers see only their own trips and fuel logs while managers see the whole fleet. All of it is reachable over the standard Frappe REST API and custom whitelisted endpoints, so a telematics feed, a mobile fuel-capture form, or a Power BI report can read and write without bypassing validation.

Because this is build-to-order, nothing is a black box. After a short scoping call we confirm exactly which vehicle document types, alert channels, maintenance rules, and reports your operation needs, then we build against your Frappe/ERPNext v15 or v16 version. We deliver and configure it on your bench, hand over the full git repository and technical docs, run UAT on a staging site with a documented rollback plan before go-live, and stay on for a support window afterward. Typical delivery is one working week from confirmed scope.