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Q4 2026: Peak storage starts 1 Oct. Peak fulfillment 15 Oct–14 Jan. Recalculate break-even ACOS before you raise bids. Operator calendar · Calculators

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SOP: Q4 bid-ceiling checklist (storage 1 Oct, fulfillment 15 Oct)

Amazon, Seller Central ve Ads duyurularını İngilizce yayımlar. Kaynak metin kaybolmasın diye aşağıdaki brief İngilizce kalır. İnceleme, formlar ve politikalar sizin dilinizde. Canlı rakamları Seller Central’da doğrulayın.

Who it hits

US FBA running ads into Q4 2026.

What to do this week

Complete this list in the last two weeks of September. Raising discovery “for Q4” is not on it.

Checklist

  1. Fee Preview on heroes with fuel surcharge + peak-fulfillment buffer. New break-even ACOS.
  2. FNSKU days of supply. Starve no ranking campaigns.
  3. Inbound vs 16 Sep / 28 Oct optimized-split dates. Miss = pause that ASIN’s ranking layer.
  4. Insurance on safety-category ASINs before 2 Nov. No cover = no Q4 scale.
  5. FBM four metrics on advertised merchant offers (31 Aug rule).
  6. Event campaigns isolated for 6–7 Oct. Kill date 8 Oct.
  7. Harvest still weekly. Discovery leash. Exact on converters that still clear the new floor.
  8. Founder log names every ceiling change. Automation rails match.

Calendar: Q4 2026 operator calendar.

Why this list exists

Q4 2026 is not one fee. Peak storage 1 Oct–31 Dec. Peak fulfillment 15 Oct 2026–14 Jan 2027. Prime Big Deal Days 6–7 Oct. Black Friday 27 Nov / Cyber Monday 30 Nov. Insurance on safety categories 2 Nov. FBM offer-level deactivation already live from 31 Aug. Inbound dates Amazon posted for event eligibility are earlier than founders think. Raising discovery “for Q4” is not on this list because it is how you donate the new stack.

September week, in order

Fee Preview on heroes with fuel surcharge plus a peak-fulfillment buffer — new break-even ACOS. FNSKU days of supply — no ranking on starved children. Inbound vs 16 Sep / 28 Oct optimized-split dates — miss means pause that ASIN’s ranking layer. Insurance on safety-category ASINs. FBM four metrics on advertised merchant offers. Event campaigns isolated for 6–7 Oct with a kill date of 8 Oct. Harvest still weekly. Founder log names every ceiling change; Teikametrics / Xnurta / Cobalt rails match.

What “done” looks like

A sheet with ASIN, old ceiling, new ceiling, in-stock status, inbound ETA, insurance flag, FBM flag, event flag. Not a vibe. Calendar: Q4 2026 operator calendar. Clocks: peak windows. Math: break-even SOP.

What Q4 “fee blogs” get wrong in September

They wait for a single holiday rate card. Amazon already moved fulfillment on 15 January 2026 and added a 3.5% fuel/logistics surcharge on 17 April. Q4 is two more clocks on top: peak storage from 1 October, peak fulfillment from 15 October 2026 through 14 January 2027. Prime Big Deal Days (6–7 Oct) sits on the storage clock and eight days before the fulfillment step. Raising discovery “for volume” is how you donate that stack. Recalculate contribution first. Then decide which ASINs still deserve traffic. Event campaigns stay isolated with a kill date. Harvest still runs the week of the event — Q4 CPCs on January junk is the expensive skip.

Who this checklist is not for

It is not a Walmart or DTC plan. It is not a reason to invent a September FBA table. Live dollars come from Fee Preview. Live inbound dates come from the Holiday 2026 Seller Forums post and Send to Amazon the week you book freight. If either moved since this page was written, the method still holds: confirm, recalculate, cut ranking under the floor, keep harvest.

FAQ

Can I skip ASINs that “always crush Q4”?

No. Those are usually the ones still running last year’s ceiling into this year’s surcharge.

When do I raise discovery?

After exact converters still clear the new floor and inbound is real. Discovery is last, not first.

Source: Holiday 2026 Seller Forums + this desk’s SOP · Confirm live numbers in Seller Central. This desk is the method, not a rate card.

Stuck on this change?

I will walk the public listing, say whether this change is leaking spend, and what week one would be.

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