Spreadsheets vs Inventory Software: Which Is Right for Resellers?

Almost every reseller starts the same way: one Google Sheet, a handful of columns, and the hope that it'll scale. For the first 20 items, it's perfect. By item 200, it's the reason you're up at 1am fixing a broken VLOOKUP.

The case for spreadsheets

Spreadsheets are free, instantly familiar, and infinitely flexible. If your business has fewer than 30 SKUs and you mostly sell one item type, a spreadsheet is genuinely fine. You can build profit columns, conditional formatting for low stock, even charts.

The catch: every one of those is a setup project. You're the engineer, the user, and the tech support — and you only notice the cracks after a few hundred items have flowed through.

Where spreadsheets break

• Profit math drifts. Cost, fees, shipping, refunds — one fee column off and your margins are fiction.
• Photos don't fit. Pasting images into cells slows the file to a crawl.
• Mobile entry is brutal. Try adding a sneaker from your phone in a 12-column sheet.
• No alerts. Spreadsheets don't ping you when you're down to your last item.
• Multi-user is risky. Two people editing at once = data loss waiting to happen.

The case for inventory software

Dedicated tools — like Inventra — exist because tracking inventory is its own discipline. The right tool gives you:

• Live profit per item, automatically
• One-tap mobile entry with photos
• Low-stock alerts and sold-through tracking
• Search and filters that work across thousands of items
• Backups, history, and multi-user access by default

When to switch

A simple rule: when you spend more time maintaining your spreadsheet than running your business, switch. For most resellers that crossover sits between 50 and 100 active SKUs.

The bottom line

Spreadsheets are a great starting point. They become a tax on your time the moment your catalog grows. Inventory software is purpose-built for what you actually need to know: what's in stock, what's selling, and what's making money.