Five reporting mistakes that quietly cost time

August 2026 · 5 min read

Reporting problems rarely begin with a chart. They begin with definitions, ownership and data flow.

1. Different definitions

If two reports use different definitions for the same metric, both can look correct while telling different stories.

2. No owner

Every recurring report needs someone responsible for its meaning, freshness and usefulness.

3. Too many copies

When a spreadsheet becomes a reporting system, version control becomes a business risk. Reduce the number of places where numbers are maintained.

4. Vanity metrics

A number is useful when someone can make a decision because it changed.

5. No documented logic

Write down where a metric comes from and how it is calculated. The next person should not need to reverse-engineer it.