How to Measure Whether Your Influencer Collab Actually Worked
Many NZ brands run influencer collabs, look at the like count, feel vaguely good or bad about it, and move on without ever truly understanding whether it worked. Here's how to actually measure what matters.
First: What Are You Trying to Achieve?
The biggest measurement mistake is measuring the wrong thing for your goal. Before any collab, be explicit about your objective:
- Awareness: Getting your brand in front of new people
- Traffic: Driving people to your website
- Sales: Converting people into customers
- Content: Getting usable assets for your own channels
- Trust: Building credibility through association
Each of these requires different metrics. Measuring sales conversions for an awareness campaign will always look disappointing. Be clear on the goal first.
The Metrics That Actually Matter
For Awareness Campaigns
- Reach: How many unique accounts saw the content (ask the creator for their insight screenshots)
- Impressions: Total views (useful for brand recall, less so for direct response)
- Saves: On Instagram, saves are a strong signal — people are bookmarking for later, which indicates genuine intent
- Shares: Organic sharing indicates the content resonated beyond the initial audience
For Traffic and Website Goals
- Unique tracking links: Create a unique URL for each creator using UTM parameters (e.g., collabs.co.nz/?utm_source=nzjimny). Google Analytics shows you exactly how many sessions came from that creator.
- Link clicks: Instagram stories (with links) show click counts. Ask the creator to share this.
For Sales Conversions
- Unique discount codes: Give each creator their own code (e.g., JIMNY15, ADVENTURE20). Your sales data tells you exactly how many conversions came from each creator.
- Revenue per creator: Total sales from that creator's code vs what you paid them. This is your actual ROI.
For Content Quality
- Engagement rate on repurposed content: If you post the creator's content on your own channels, how does it perform vs your own content?
- Ad performance: If you run it as a paid ad, what's the CTR and conversion rate vs your other creative?
What to Ignore (or At Least Deprioritise)
Follower count of the creator
We've said it before and we'll say it again: follower count tells you very little about the impact a collab will have. Engagement rate, audience quality, and content relevance matter far more.
Total impressions in isolation
1 million impressions is meaningless if they're all from accounts outside NZ or outside your target demographic. Qualified reach beats raw numbers.
Comments on the post
Comment counts are easily gamed and notoriously unreliable as a quality signal. Look at comment quality (real, engaged responses) rather than count.
Follower growth from a collab
A successful collab might send people to your website without following your account. Don't judge success by follower growth unless follower growth is explicitly your goal.
How to Get the Data You Need
Many creators are comfortable sharing their post insights — reach, impressions, engagement, link clicks. Build this into your brief from the start:
"We'd love it if you could share a screenshot of your post insights after 48 hours — reach, impressions, and any link click data would be really helpful for us."
Most professional creators will do this without any issue. It's a completely normal request.
The Simple Scorecard
After each collab, score it on these five questions:
- Did it reach the right people? (Yes / Partially / No)
- Did it drive measurable action? (clicks, sales, code uses)
- Was the content quality strong enough to repurpose?
- Was the creator professional and easy to work with?
- Would you work with this creator again?
This scorecard, kept consistently, will tell you more about what's working in your creator marketing than any metric dashboard.
The ROI Reality Check
Influencer marketing ROI is rarely instant. A creator post that gets 50 people to your website might convert two customers today — but five more will remember your brand next month when they're ready to buy. Attribution is genuinely hard.
The brands that win with creator marketing treat it as a compounding investment: each collab builds brand recognition, trust, and content assets. The brands that quit after one disappointing collab never see the compounding effect kick in.