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Django · PostgreSQL · REST

Inventory & Order Management System

Multi-warehouse stock, purchase orders, sales orders and invoicing for a distributor, with barcode scanning and low-stock reordering.

DjangoDRFPostgreSQLCeleryRedisReact admin
Stock by warehouse and product
Orders by status
Low stock and reorder suggestions

Screens are illustrative layouts of the product, not client screenshots.

Overview

What it is

An inventory and order system for a distributor: multiple warehouses, purchase and sales orders, invoicing and barcode scanning, with automatic reorder suggestions when stock runs low.

The problem

Why it was needed

Stock counts differed between warehouses and spreadsheets, orders were re-keyed between systems, and reordering depended on someone remembering.

Ledgerevery stock movement traceable
Multi-warehousestock by location
Suggestionsreorders proposed from sales history

Features

What We Built

Stock ledger

Every receipt, transfer and sale recorded.

Multi-warehouse

Stock, transfers and locations.

Purchase orders

Suppliers, approvals and receiving.

Sales orders and invoices

Order to invoice with taxes and statuses.

Barcode scanning

Receiving and picking by scan.

Reorder suggestions

Low-stock alerts and suggested quantities.

Architecture

How It Fits Together

  1. Admin and scanner UIReact + mobile scan
  2. Django appsstock, purchasing, sales
  3. Approvalsrole-based workflows
  4. PostgreSQLledger and orders
  5. Celery + Redisreorder jobs, reports
  6. Invoice PDFsdocuments and emails

Stock is never edited directly; it is always the sum of ledger entries, which keeps counts explainable.

Roadmap

From Idea to Launch

A typical delivery roadmap for a project of this kind.

  1. 1

    Requirements

    1-2 weeks
    • Warehouse and product structure
    • Order and approval flows
    • Tax and invoice rules
  2. 2

    Stock core

    3 weeks
    • Product and location models
    • Stock ledger
    • Transfers and adjustments
  3. 3

    Purchasing and sales

    3 weeks
    • Purchase orders and receiving
    • Sales orders and invoicing
    • Approvals
  4. 4

    Scanning and automation

    2 weeks
    • Barcode workflows
    • Reorder suggestions
    • Reports
  5. 5

    Launch

    2 weeks
    • Opening stock import
    • Parallel run
    • Training

Want something like this?

Tell us what it should do and we'll come back with a stack, a scope and a timeline.