Your DVA Display Impressions Are About to Drop 63% — and Nothing Will Have Changed

Reported: 3 November 2026 · Effective 1 January 2027

Amazon is changing how it counts impressions for DVA display ads — Display, Video & Audio, formerly Amazon DSP. Through 31 December 2026, an impression counts when the ad begins downloading to the shopper’s device. From 1 January 2027, it counts once the ad actually appears on the shopper’s screen.

This is a measurement change, not a performance change. But it will look like a catastrophe on your January reports if nobody warned you.

1. The Numbers

Reported impressions are expected to fall roughly 63% on average, with larger drops on placements further down the page.

Because spend and clicks do not change, every metric calculated against impressions moves with it. On the widely cited worked example, a $5.00 CPM would read around $13.51 — about 2.7 times higher. Click-through rate rises by the same factor, for exactly the same reason.

2. What Is In Scope

Only DVA display ads on the Amazon Store — homepage, product detail pages, search results pages and order pages.

Not in scope: DVA video, DVA audio, DVA on third-party sites, Sponsored Products or Sponsored Brands. If you report a blended impression number across all of these, the blend will shift without any single channel being wrong.

3. The Question Amazon Has Not Answered

The notice does not state whether billing moves to the new count.

That is not a detail. If reporting counts on-screen impressions but billing still counts downloads, your invoice and your dashboard stop reconciling in January. Ask your Amazon account team directly — and ask the same question about bids and view-through attribution, which are both calculated against impressions.

4. Do This in December, Not in January

• Export a December 2026 baseline by placement: impressions, CPM, CTR, ROAS and CPA. Once January starts, the comparison point is gone.
• Tell whoever reads the reports — internally or client-side — before the numbers move, not after.
• Reset Q1 2027 targets away from raw impressions and reach, toward ROAS, CPA and new-to-brand sales.
• Review placement positions. Lower-page placements take the largest drop, so a placement mix that looked efficient on impressions may look very different on-screen.
• Compare billed impressions against reported impressions on your January 2027 invoices.

5. The Honest Read

Counting an impression when the ad is actually on screen is the correct way to count it. Amazon says advertisers in testing saw higher ROAS and lower CPA, though it notes results vary by campaign — and that is the right framing: the ads were always performing this way, the measurement was just generous.

The risk is not the change. The risk is a Q1 review where somebody sees impressions down 63% and concludes the account collapsed. Export the baseline in December and that conversation never happens.