Comparison
Spreadsheets vs an OMS: when Excel stops paying for itself
Updated 3 min read
The short answer
Spreadsheets work well for a single-channel seller under roughly 300 orders a month. They stop working the moment two channels share stock, because a spreadsheet cannot update itself when a sale happens somewhere else. The cost shows up as oversells, cancelled orders, marketplace metric damage and hours of manual reconciliation.
- Spreadsheets are fine at: one channel, one person, low volume, simple catalogue
- They fail at: shared stock, concurrent edits, audit trail, invoice numbering
- The tipping point most sellers report: the second channel, not a volume number
The fair case for spreadsheets
A spreadsheet costs nothing, needs no onboarding, and bends to any process you invent on a Tuesday. For a seller on one marketplace shipping a couple of hundred orders a month, it is genuinely the correct tool, and paying for software instead is a waste of margin. Any vendor who tells you otherwise is selling, not advising.
The four places it breaks
- 1
Shared stock across channels
A spreadsheet cannot know that Flipkart sold a unit two minutes ago. Every channel you add multiplies the chance that two buyers purchase the same last unit — and the marketplace, not the spreadsheet, decides what that costs you.
- 2
Two people editing at once
The moment a second person picks orders while a first updates stock, you have two versions of the truth and no record of which change won.
- 3
Invoice numbering
GST invoices need a sequential, gap-free series. Manual numbering produces duplicates and gaps, and a copied row is a duplicate invoice number you will find during an audit, not before.
- 4
No audit trail
When stock is wrong, a spreadsheet can tell you the current number but never how it got there. A ledger-based system can replay every movement — sale, return, adjustment, transfer — and show you exactly where the discrepancy entered.
What staying too long actually costs
The costs are rarely on an invoice, which is why they get missed. Count the hours your team spends copying orders between panels, the orders you cancelled for stock you did not have, the marketplace performance damage that follows those cancellations, and the settlements you never checked because checking them by hand was impossible.
Moving off a spreadsheet without losing your data
- 1Freeze one canonical SKU code per product, and map every marketplace listing to it.
- 2Do a physical stock count on a day you are not shipping.
- 3Import products and opening stock; keep the spreadsheet read-only for a fortnight as a reference.
- 4Start a fresh invoice series at a month boundary so your books have a clean cut-over.
- 5Run one channel through the new system before connecting the rest.
Frequently asked questions
Can I manage e-commerce orders in Excel?
Yes, on a single channel at low volume. Excel fails once two channels share the same stock, because it cannot update itself when a sale happens elsewhere, and it has no audit trail to explain a discrepancy after the fact.
How many orders a month can a spreadsheet handle?
Most sellers report the limit is roughly 300 to 500 orders a month with one person on one channel. But the real trigger is usually the second sales channel rather than the volume.
Will I lose my spreadsheet history when I move to an OMS?
No. Import products and opening stock, keep the old sheet read-only as a historical reference, and start the new system with a clean physical count. Past records stay exactly where they are.