Handling an Underperforming Campaign
Part of the Digital Marketing Roadmap
In short
'Tell me about a campaign that didn't work.' This isn't a trap. They want to see that you notice problems, investigate calmly, act and actually learn. Pretending you've never failed is the wrong answer.
'Tell me about a campaign that didn't work' — testing self-awareness, diagnostic thinking, and whether you actually learn from mistakes, not just how you handle success.

Think of it like this
The burnt cake
Your first cake comes out burnt on top. You don't throw away the recipe book and quit. You check: oven too hot, wrong shelf, too long? You note it, lower the temperature next time and the second cake is better. Interviewers want that thought process, not a perfect record.
Watch it happen
Structure for a 'what went wrong' answer
1/5State it plainly: 'Our first email campaign for the fest got a 0.5% click rate against a 3% target.'
The big ideas
What you need to know
Own it, no blame
Don't blame the team, the client or the algorithm. Take responsibility for your part.
Show diagnosis
Explain how you found the cause using data, not guesses.
Prove the learning
Give a later example where you applied the lesson. That closes the loop.
Pick a real but moderate failure
A genuine miss you learnt from, not a disaster that raises red flags.
See it in code
Walk through the code
1"Our fest email got a 0.5% click rate against a 3% target.2I checked and found the CTA sat below a long paragraph, and many3emails landed in the promotions tab. I rewrote it shorter with one4button at the top, sent from a team member's name, and resent to5non-clickers. Clicks rose to 2.4%. Since then I always test on a6small group first."1/3The miss, stated plainly with numbers.
A short honest answer: the miss with a number, the diagnosis, the fix, the result and the lasting lesson.
Save yourself the pain
Common mistakes
Oops
Choosing a 'failure' that's secretly a brag, like 'I worked too hard'.
Do this instead
Pick a real miss. Interviewers see through humble-brags.
Oops
Ending on the failure with no lesson.
Do this instead
Always finish with what you changed and how you apply it now.
Your mission
Prepare your failure story
Quick check
What are interviewers mostly testing with 'Tell me about a campaign that failed'?
Go deeper
- 1Prepare a genuine story, not a humble-brag disguised as a failure.
- 2Focus more time on how you diagnosed the issue and what you changed than the failure itself.
- 3Practice owning your part in it directly, without deflecting blame elsewhere.
More behavioral at this stop
Stuck on this topic? Ask an Insider
Get 1:1 guidance from people who've walked this exact path — on the InsideEdge app.