Last day for Amazon's October sale: deal submissions close September 22
For Prime Big Deal Days (Oct 6–7), Best Deals and Lightning Deals submissions close on September 22 — the first hard inventory deadline of peak season.
Amazon's October sale, Prime Big Deal Days, runs on October 6–7 — but the critical date for sellers is today: Best Deals and Lightning Deals submissions close on September 22. The event also marks the first hard inventory deadline of peak season — Walmart, Target and Best Buy schedule their own October sales around it, so competition compresses into a single window.
The seller-facing side: joining a deal means a discount, and a discount means giving up margin per unit. More flexible options like Prime Exclusive Discounts stay open until 12 hours before the event ends, but every discount stacks on top of commission and logistics cost. The right question isn't 'should I run a deal' but 'does this deal still leave net profit per unit?' Before you opt in, add up commission + logistics + the discount share; if there's no profit underneath, putting that SKU in the campaign only inflates revenue.