A spreadsheet feels safe: everything is visible, everything can be fixed. The problem is that nobody sees an error in a spreadsheet until it turns into a cancelled order, a wrong invoice, or an item that is not in the warehouse.
How often spreadsheets are wrong
Researcher Raymond Panko collected the results of field audits of real working spreadsheets. Audits from 1997 onward found errors in about 91% of the 54 spreadsheets checked. The share of wrong cells in large spreadsheets was around 1-2.5%.
1% sounds small. But in a spreadsheet with 1,000 formulas that is 10-25 wrong cells, and any of them could be a price, a stock count, or an amount due.
Stock: items that are not there
IHL Group puts global retail losses from inventory distortion at $1.77 trillion: about $1.2 trillion from out-of-stocks and $562 billion from overstocks. For an online store that means two scenarios: the customer paid for something that is not there, or money is frozen in stock that does not sell.
The website and checkout
Across 50 studies, Baymard Institute puts the average cart abandonment rate at 70.22%. Among the reasons a business can influence, some are operational: 20% of shoppers left because delivery was too slow, 17% because the site had errors or crashed, and 12% because they could not see the total order cost up front.
Money: invoices and late payments
According to the Atradius 2026 barometer, nearly four in five companies in Western Europe face late payments, and one in four loses up to 5% as a result. Issuing invoices by hand adds its own errors: wrong details, forgotten reminders, payments nobody reconciled.
What to automate first
01. One source of truth
Price, stock, and order status should live in one place, with every other system reading from there. Two spreadsheets with "the same" data will drift apart sooner or later.
02. Stock synchronisation
A sale on the website, a return, and a supplier delivery update the stock automatically, with no manual copying.
03. Invoices and reminders
The invoice is built from the order data and the payment reminder goes out on schedule. The accountant reviews exceptions instead of typing every document.
04. A daily reconciliation with alerts
Every day the system compares stock, payments, and orders and messages Telegram only about mismatches. You see an error the next morning, not at the end of the quarter.
Frequently asked questions
Should we stop using spreadsheets?
No. A spreadsheet can stay a convenient interface. What matters is that data gets into it automatically instead of being retyped.
Where to start if the errors are already there?
With a reconciliation: compare the data across your systems and write down where it differs. That list is your first automation brief.
Sources
- Raymond R. Panko: Spreadsheet Errors: What We Know. What We Think We Can Do (EuSpRIG)
- Chain Store Age: IHL Group study, global retail losses due to inventory distortion hit $1.77 trillion
- Baymard Institute: cart abandonment rate statistics
- Atradius Payment Practices Barometer 2026, Western Europe (press release)
Sources checked on 25.10.2026. The implementation order in this article is Nexora's recommendation and needs adapting to your systems. The research figures describe the market as a whole, not results from client projects.
