Most Amazon agencies don’t destroy brands intentionally. They just don’t underst
By Liranhirschkorn · March 11, 2026 · Curated by George's Blog
Most Amazon agencies don’t destroy brands intentionally.
They just don’t understand what’s already working.
In the last year, two brands left our agency.
Here’s what happened.
Brand A
Left after 3 years of management.
Within months of switching to a new agency:
→ CPC jumped 67% ($1.50 → $2.50)
→ ACOS spiked across the account
→ They had to do a massive scale back because ad spend became unprofitable
→ Organic sales flatlined despite heavy investment
→ They lost momentum they still haven’t recovered
Now they are considering coming back.
Not because we called.
Because the numbers spoke for themselves.
Brand B
Left more recently.
The new agency’s first move?
They paused over 200 campaigns.
Those campaigns were running at:
• 29% ACOS
• 3.4x ROAS
• $500K+ in attributed monthly revenue
And someone hit “pause.”
Within 30 days:
→ Ad-attributed sales dropped 21.6% ($797K → $625K)
→ Account ACOS jumped from 29% → 53%
→ CTR fell from 0.87% → 0.59%
→ Organic daily units collapsed 73% (10,000/day → 2,672/day)
→ Best Seller Rank started climbing
→ Sessions and orders tracking below prior year
Two brands.
Two different agencies.
Two different mistakes.
Agency #1: raised CPCs and spent recklessly.
Agency #2: paused what was already working.
Both destroyed months of progress in weeks.
The hardest part of Amazon advertising isn’t building performance.
It’s maintaining it.
Campaign architecture.
Keyword data.
Bid history.
Search term optimization.
That’s institutional knowledge built over months and years.
When a new agency walks in and:
• rebuilds everything from scratch
• pauses campaigns they don’t understand
• ignores existing data
You don’t just lose ad performance.
You lose:
→ Organic velocity
→ BSR
→ Ranking momentum
The things that compound over time.
If you’re considering switching agencies, ask these questions first:
→ How will you handle our existing campaign structure?
(If they say “we’ll rebuild from scratch” without further explanation — red flag.)
→ Will you preserve keyword and bid history?
(If they don’t understand why this matters — red flag.)
→ What’s your plan for the first 30 days?
(If it involves pausing campaigns before analyzing them — run.)
→ Can we track TACOS weekly for the first 90 days?
(If they can’t commit to this visibility — red flag.)
Switching agencies should improve your performance.
It should never reset it to zero.
We’ve seen it happen twice now.
Don’t be Brand C and do lots of due diligence.