Ad Sales Tripled, Organic Dropped: Decoding Amazon PPC Cannibalization [The PPC Den Podcast]

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Have you ever scaled your Amazon PPC campaigns only to watch your organic sales completely drop off? In this episode, Michael and Amazon advertising expert Brent Zahradnik tackle a fantastic listener question where a brand’s ad sales tripled, but their organic sales actually decreased year-over-year.

They dive deep into the real reasons behind this frustrating scenario, exploring whether aggressive ad spend is truly cannibalizing organic placements or if there are other hidden factors at play, such as shrinking overall search volume or overspending on highly dominant branded keywords. 

It is a common fear for Amazon sellers and PPC managers alike, but the reality of how the algorithm balances paid and organic traffic is rarely straightforward. To help you navigate this exact problem, the guys break down the actionable strategies and metrics you need to measure true ad incrementality.

We’ll see you in The PPC Den!

Episode Highlights

  • 00:00 – Intro
  • 01:50 – Listener Question Ad Sales Tripled, Organic Dropped
  • 04:05 – What is a “Healthy” Organic vs. Paid Sales Ratio?
  • 06:00 – Defining PPC Cannibalization & Incrementality
  • 08:10 – Scenario A: Overspending on Branded Keywords
  • 10:20 – Scenario B & C: Did PPC Save the Brand or Did the Market Shrink?
  • 15:30 – How to Fix It Step 1: Track Organic vs. Paid Percentage
  • 16:44 – Why Historic Rank Tracking Still Matters
  • 19:10 – Step 2: Using Search Query Performance Data
  • 22:15 – Step 3: Running a Holdout Test with AMC
  • 26:24 – Final Verdict: Does PPC Actually Cannibalize 100% of Sales?
  • 27:50 – Where to Find Brent

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