Influencer ROI vs EMV: how to tell if a campaign really paid off

Anyone who has sat through an influencer campaign review knows the slide. The cost is modest, and underneath it sits an earned media value several times bigger, presented as though the gap were profit. Heads nod, the meeting moves on, and a few months later someone in finance asks why a campaign supposedly worth so much never appeared in the sales figures.

EMV is not a dishonest number in itself. It turns into one when it is used to answer a question it was never built for. To judge influencer spend properly, you need to know what each figure measures and which one deserves the headline.

EMV is a comparison with paid media

Earned media value estimates what the attention a campaign earned would have cost if you had bought it as advertising. The formula: impressions divided by 1,000, multiplied by the CPM, meaning what paid media would charge to reach the same audience a thousand times.

Take a campaign whose posts earned 400,000 impressions, where comparable paid social costs AED 30 per thousand. The EMV is AED 12,000. That figure compares the campaign with paid media. It is not revenue, it is not return on investment, and it tells you nothing about whether anyone bought anything.

Everything hangs on the CPM

EMV rests on a single assumption, the CPM, and it is the assumption least often questioned. Double the CPM and the EMV doubles with it. A rate lifted from another market or a premium placement, or simply chosen because it made the total look good, can turn any campaign into a success on paper.

When an EMV figure lands on your desk, check three things:

• The CPM is one you would accept, ideally based on what your own paid social actually costs in that market.
• It is stated in the report next to the EMV, every time.
• It stays the same month to month, so a rising EMV reflects a better campaign rather than a more generous assumption.

AED 30 per thousand impressions is a common starting point for Gulf agencies. Treat it as a placeholder until you have agreed your own rate, and make sure the agreed rate is written down.

Be cautious of any method that multiplies the result to account for credibility or influence. That is the same step that made advertising value equivalency, the old PR measure, so hard to defend, and the measurement industry has spent years moving away from it.

Figures that need no assumptions

Some of the most useful campaign numbers involve no guesswork at all. Each is one figure reported by the platform or the creator, divided by another you already have, which makes them far harder to dispute than EMV.

• Effective CPM: spend divided by impressions, times 1,000. What the campaign really paid per thousand impressions.
• Cost per engagement: spend divided by total engagements (likes, comments, shares and saves).
• Engagement rate: engagements divided by impressions.
• Frequency: impressions divided by reach, showing how often the same people saw the content.
• Cost per click, and cost per acquisition where conversions are tracked.

Effective CPM answers, honestly, the question EMV is reaching for. Rather than valuing impressions at a notional rate and admiring the result, it asks whether creators delivered attention more cheaply than paid media would have. If the effective CPM comes in below what you pay for comparable ads, that is a genuine finding. If it comes in above, the campaign has to be justified some other way.

Return needs revenue you can trace

Return on investment is revenue minus spend, divided by spend. Return on ad spend is revenue divided by spend. You cannot calculate either without revenue that traces back to the campaign, which in practice means a discount code, a tracked link or a dedicated landing page, agreed before any creator is booked.

Here is how the figures compare on one campaign. AED 24,000 goes on creators, the posts earn 600,000 impressions, and a code brings in AED 36,000 of sales:

• EMV at AED 30 per thousand: AED 18,000, lower than the spend.
• Effective CPM: AED 40.
• ROAS: 1.5, so each AED 1 returned AED 1.50 in sales.
• ROI: 50%.

Keep two caveats in mind. Tracked sales undercount, because some people see a post and buy later without the code, so read them as a minimum. And ROAS measures revenue, not profit. With a thin margin, a ROAS of 1.5 can still lose money once the cost of goods is deducted, so settle on a break-even figure before the campaign starts.

A strong EMV can sit on top of zero sales, and a modest one can pay for itself. A good report makes it plain which of the two you are looking at.

Where the raw numbers come from

All of these depend on impressions, reach and engagement, which for influencer posts come from the creator's own insights. Put the reporting duty in the agreement: which metrics, in what format, and by when. A common arrangement is seven days for feed posts and 24 hours for stories, since stories drop out of insights quickly.

Numbers collected weeks afterwards, as cropped screenshots without a date, should not be accepted into a report. If a figure could not be verified, the report should say so instead of estimating it.

Choosing the headline number

The lead figure should match the objective agreed at the outset. Report an awareness campaign on reach, frequency and effective CPM. Report a campaign meant to sell on cost per acquisition, ROAS and ROI. EMV can support either, always shown with its CPM, but it should never headline a campaign whose job was to sell.

It also helps to see influencer results next to the rest of the month's marketing in a single report, rather than in a separate deck. Deciding which number leads is still a judgement call, and it is the part that decides whether the report is believed.

If you would like an outside view on how your influencer results are being measured, or help setting up tracking before the next campaign, ALXO is always glad to have that conversation.