Measuring event success: objectives, indicators and review
Once the last guests have left, it is very tempting to file everything away and move on. Yet the days that follow are when you learn the most: what worked, what cost a lot for little effect, what to keep for next year. Here is how to carry out a proper debrief.
Regulations and good practice 5 min read Updated on
Why measure the success of an event?
A corporate event represents a budget, preparation time and your colleagues’ working hours. Measuring it lets you justify that investment to management, decide whether to repeat it, and above all improve it. Without a debrief, the same mistakes happen year after year: a speech that runs too long, a bar that is too small, a shuttle with badly planned timings.
Measuring does not necessarily mean producing a thirty-page report. For an end-of-year party, three indicators and a one-hour meeting are enough. For a convention or a trade fair, the debrief will go further.
How do you set measurable objectives?
It all starts before the event. “Having a great party” is not a measurable objective; “getting the teams from the two sites that merged this year to meet each other” already comes closer. For each objective, ask yourself: how will I know, in a week’s time, whether it has been achieved? Two or three objectives are enough. Any more and you spread yourself too thin and measure nothing properly.
Which indicators should you track for each type of event?
| Type of event | Common objective | Useful indicators |
|---|---|---|
| Corporate party | Team spirit, thanking staff | Attendance rate, satisfaction score, time the last guests left |
| Seminar | Alignment, decisions | Understanding of key messages, actions agreed, satisfaction per workshop |
| Team building | Cooperation between departments | Mixing of teams, how participants felt, concrete follow-up |
| Product launch | Visibility | Attendees versus invitees, press coverage, social media shares |
| Trade fair or stand | Sales contacts | Qualified contacts, meetings booked, cost per contact |
| Works council Christmas party (CSE) | Family satisfaction | Sign-up rate, feedback from parents, children’s participation |
Always add two cross-cutting indicators: variance from budget (planned, committed and actually paid, item by item) and sticking to the running order (did the highlights happen at the planned time?).
How do you build a satisfaction survey?
- Send it quickly: within 48 hours, while memories are fresh. After a week, response rates drop.
- Keep it short: fewer than ten questions, five minutes at most. A survey that is too long does not get filled in.
- Start with an overall score, then the likelihood of coming back or recommending the event to a colleague.
- Score each highlight: welcome, content, catering, entertainment, venue, practical organisation.
- Ask a question linked to the objective: “Did you talk to colleagues from another department?”
- Finish with an open question: “What should we change next time?” It is often the most revealing.
For strategic events, back up this immediate survey with later feedback, one to two months on: are the seminar’s decisions being applied? Did the trade fair contacts lead to meetings?
What should you do with the photos and videos?
Images are both a deliverable and an indicator. Photo coverage delivered within 48 hours lets you send an illustrated thank-you message while the event is still on everyone’s mind, which also boosts the survey response rate. The spontaneous shots from a photo booth show who took part, and in what mood. With a selfie-based gallery such as PicShot, you can also see how many guests came to collect their photos. Finally, a short film of the event serves as material for internal communication and for persuading management to run it again.
How do you calculate the return on investment?
For a commercial event, the calculation is fairly direct: you compare the total cost with the contacts obtained, the meetings booked, then the sales signed in the following months. For an internal event, the return is harder to put a figure on, but it can still be measured. Track, for example, the attendance rate from one year to the next, answers to a question such as “do you feel more connected to the company after this event?”, or the HR indicators the event aims to improve (onboarding new starters, collaboration between sites). Also divide the total cost by the number of participants: this cost per person is the most telling basis for comparison from one edition to the next.
What mistakes should you avoid in the debrief?
- Measuring only satisfaction: delighted guests do not necessarily mean the objective was met.
- Waiting too long: after a week, memories blur and invoices go missing.
- Only asking the organisers: participants, suppliers and the venue each see a different part of the event.
- Filing the debrief away in a drawer: it should be reread when preparing the next edition.
How do you run the debrief with the teams?
Within the week, bring together the people who organised the event and the main suppliers. Go through the running order hour by hour, then the survey results and the budget. Three questions structure the discussion: what worked well and should be kept? What caused problems, and why? What do we change for the next edition? Record the answers on a one-page sheet, filed with the event brief: that is what will save you time next year.
What is the review, the fourth step of our method?
At ADJM Événementiel, every project follows four steps: proposal, approval, delivery and review. After the event, we take stock with you: what worked, your guests’ feedback, the adjustments for next time. You receive the photos from our photographers, and the debrief sheet becomes the starting point for the next edition. Find out more on the our method page.
Questions we are often asked
How do you measure the success of a corporate event?
Before the event, set two or three precise objectives and link each one to a measurable indicator (attendance rate, satisfaction score, contacts collected, shares), then gather data both immediately and later on: a short questionnaire within 48 hours, a debrief with the teams, and a review of the photos and feedback. Then compare the result with the objective and the budget.
What questions should you ask in a post-event satisfaction survey?
Keep it under ten questions: an overall score, the likelihood of recommending or coming back, a score for each highlight (welcome, content, catering, entertainment, venue), a question about the objective (“did you meet new colleagues?”) and an open question on what should change. Send it within 48 hours.
More advice
Let’s prepare an event whose impact you can measure
Tell us about your objectives: we will build the event, the indicators and the debrief with you, with a first proposal within 48 hours.