Why do disconnected spreadsheets break commercial operations?
Spreadsheets are useful analytical tools, but weak systems of record for cross-functional commercial decisions.
Short answer
Disconnected spreadsheets break commercial operations when the same decision is copied into multiple files, approvals happen outside the record, formulas or assumptions change without a durable history, and actual performance cannot be traced back to the approved opportunity. The problem is not the spreadsheet itself; it is using separate files as workflow, database, and audit trail at the same time.
Recognize the failure pattern
The same pattern appears repeatedly: Commercial creates an intake file, Finance rebuilds the economics in another workbook, approvals arrive by email, Supply Chain maintains a separate feasibility view, and the final award is copied into a planning file. Each artifact may be reasonable on its own, but no single record explains the complete decision.
The risk grows when a file is also a template. Changing the template can change future logic without preserving which logic governed a past decision.
Move the decision record first
Do not begin by banning spreadsheets. Begin with the fields and events that establish truth: the request, versioned economics, approval, award, activated commitment, and links to actuals. Keep calculations in a spreadsheet when they are exploratory, but publish the approved assumptions and result into the governed record.
- One identifier for the opportunity and award
- One current status with an accountable owner
- Versioned assumptions and approval evidence
- Explicit links to forecasts and actual performance
Measure whether the process improved
Track response time, approval rework, missed deadlines, unmatched actuals, and the time required to explain a variance. These measures reveal whether the new process reduced coordination cost rather than simply moving the same spreadsheet into a different screen.
Frequently asked questions
Are spreadsheets always a problem?
No. They are excellent for flexible analysis. The problem begins when a spreadsheet becomes the only record of status, approval, ownership, and history for a cross-functional business decision.
What spreadsheet should be replaced first?
Start with the file whose failure would make it hardest to prove what was approved, by whom, and under which assumptions. That is usually more important than replacing the largest workbook.