3PL / Warehouse Billing for ERPNext

ECOSIRE builds a proper Frappe app that installs alongside ERPNext and adds the 3PL layer natively. We introduce a Stock Owner (client) dimension and enforce it across Stock Entries, Delivery Notes, and Purchase Receipts via hooks.py doc events (validate, on_submit) and server scripts, so every unit in a warehouse is attributable to exactly one client and no cross-client pick can be submitted. New DocTypes such as 3PL Rate Card, Storage Charge, Handling Charge, and VAS Charge model your tariffs — storage by pallet/bin/volume/weight per period, inbound and outbound handling per line or per unit, pick/pack tiers, and ad-hoc value-added services. A scheduler event (scheduler_events in hooks.py) runs on a daily and monthly cadence to snapshot occupancy, accrue storage charges, aggregate handling activity from submitted warehouse documents, and generate a draft periodic ERPNext Sales Invoice per client that your finance team reviews and submits.

On top of the billing engine we build the operational surfaces a 3PL needs: inbound (ASN / receipt) and outbound (order / dispatch) management scoped per client, and a client portal built on Frappe's website and portal framework where each 3PL customer logs in to see only their own stock balances, in-transit orders, and billing history. Access is locked down with dedicated Role Profiles and permission rules plus User Permissions on the client link field, so a portal user can never query another client's inventory. Integrations use the standard Frappe REST API and purpose-built @frappe.whitelist() methods, so your clients' own systems (or a WMS/shipping tool) can push orders and pull stock and invoice data programmatically. Client Scripts add the in-form UX — owner filters, live charge previews, and validation — without forking ERPNext.

Because this is build-to-order, nothing ships as an instant download. We start with a short scoping call to map your rate structure, warehouse layout, and billing cycle, then build against your exact requirements on Frappe/ERPNext v15 or v16. Typical delivery is 2 to 4 weeks from confirmed scope. You get the installable source, UAT on a staging bench with a rollback plan, install and configuration on your environment, documentation and a training session, and a post-go-live support window. No fabricated benchmarks, no boilerplate — a working 3PL billing system tailored to how your warehouse actually charges.