Cost per Effective Communication vs. Traditional CPM

Why traditional CPM falls short when applied to in-store media.

Cost per 1,000 impressions (CPM) has long been the default metric in advertising. But for in-store environments, it often fails to measure the actual communication between brand and shopper:

  • CPM is based on estimated footfall or screen views.

  • It does not account for whether the message was delivered or received.

  • It treats all media types equally, despite wildly different attention dynamics.

Formula: CPEC = Media Cost ÷ (Verified Impressions* × Exposure Rate × Engagement Score)

Introducing CPEC: Cost per Effective Communication. 

CPEC provides a more accurate measurement by adjusting for true exposure and attention. It calculates how much it costs to deliver a message that a shopper actually receives.

  • Verified Impressions*: Total potential audience (net POS driven data)

  • Exposure Rate: 100% of audience likely to hear/see the ad.

  • Engagement Score: Attention level of media type (scale from 0 to 1)

Why CPEC Matters for FMCG Brands:

  • Reflects real message delivery, not screen counts or estimates.

  • Standardizes media evaluation across audio, video, and hybrid formats.

  • Empowers brands to buy media based on impact, not guesswork.

  • Creates a consistent ROI framework across campaigns and channels.

*Verified Impressions, explained.

Total POS transactions delivering verifiable active in-store decision makers across the participating retail network.

+ Total number of all POS transactions.

- Percentage of non-FMCG categories.

- Store delivery app sales.

= Verified shoppers exposed to audio promotion.