Highlight duplicates
Color every value that appears more than once in a column, so repeated invoices, emails or IDs stand out before they cause trouble.
In this lesson
- Select one column, then Format, then Conditional formatting.
- Every copy is colored, the first one too. Values that appear once stay plain.
- The rule reads only the cells it covers.
Try a free lesson first
Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.
Confident · 9 min · Free, with no sign-up
Do the free lesson on your computer.
Send yourself the link and open it on a laptop or desktop.
On your computer, go tolearnford.com/go/BV7C
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- All 215 Google Sheets lessons open today, and every new one as it's written.
- The Roadmap, Skills and all seven paths.
- A cheat sheet for every lesson you finish.
- Skill
- Conditional formatting
- Stage
- Confident
- Path
- Clean up messy data
Where it sits in Conditional formatting
- Highlight cells above a value8 min
- Color scales and data bars9 min
- Highlight the whole row9 min
- Highlight duplicatesThis lesson9 min
- Highlight overdue and due-this-week dates11 min
- Traffic-light status column10 min
The steps
10 steps: 4 explanations, 3 Do this, 3 questions, then Your turn.
Try a free lesson first
Delete repeated rows from a merged list, and choose which columns decide what counts as a duplicate.
Confident · 9 min · Free, with no sign-up
Do the free lesson on your computer.
Send yourself the link and open it on a laptop or desktop.
On your computer, go tolearnford.com/go/BV7C