How to Build Inventory Management System in Google Sheets (Free) - E44

A working inventory system for consumable and store items that runs entirely on Google Sheets and Apps Script. If office supplies or stock are tracked in a paper register or a spreadsheet that three people edit at once, this replaces it with a real web app your whole team can open from any device.

What it does

Staff log in against one of three roles. A Requester raises a stock request, a Store Person or Admin approves or rejects it, and the stock position updates from there — so issuing items has an approval trail instead of a verbal handover. When an item drops below its threshold, a low-stock email goes out automatically twice a day, and three report types can be generated as PDF for download or print.

Highlights

• Role-based login: Admin, Store Person and Requester
• Stock request approval workflow with approve and reject
• Automatic low-stock email alerts, twice daily
• Three PDF reports, ready to download or print
• Dashboard charts showing the current stock picture
• Google Sheets as the database — every movement is a row you can audit
• React 18 front-end deployed as an Apps Script web app

Who it is for

Small businesses and shops tracking stock, offices managing supplies and consumables, Google Workspace admins automating internal requests, and developers who want a complete inventory project with source code rather than a half-finished demo.