Don't Add Those Negatives Yet: How to Clean Up Search Terms After Prime Big Deal Days 2026

Prime Big Deal Days ran October 6-7, 2026, and the morning after, most sellers opened a search term report full of red: terms that spent with no orders, CPCs well above normal, and ACoS that made no sense. The natural reaction is to start negating. Resist it for a few more days. Event data is late, distorted, and not representative of how those search terms will perform in a normal week - or in the Black Friday week that is now six weeks away.

Why the Search Term Report Lies to You Right After a Big Event

Three things make post-event data misleading at the exact moment you're most tempted to act on it.

1. Sales are still being attributed

On Seller Central, Sponsored Products uses a 7-day attribution window: a shopper who clicked your ad on October 7 and bought on October 13 still counts as an ad sale for that search term. Sponsored Brands uses a 14-day window, so event clicks can keep picking up sales until October 21. On top of that, Amazon's reporting lags - sales can take hours to show up, and some data is corrected days later. A term that showed zero orders on October 8 can look completely different a week later.

Event shoppers make this worse, not better. Plenty of people browse and add to cart during a deal event, then buy days later when they're ready - or when a coupon lands. Those late purchases are exactly the ones your October 8 report can't see yet.

2. Event traffic isn't normal traffic

During a deal event, prices drop, deal badges appear, competitors pile in, and shoppers behave differently. A Triple Whale benchmark of around 2,000 brands found average daily Amazon ad spend rose about 149% during the 2026 event while purchases per day rose about 183%. That's a very different auction from the one you'll be in next Tuesday. A term that converted badly at a 30% discount against 15 aggressive competitors tells you little about how it converts at full price on a quiet weekday.

3. Two days is a tiny sample

Most long-tail search terms get a handful of clicks during an event. Five clicks and no order is not a verdict - at a 10% conversion rate, getting zero orders from five clicks happens more than half the time by pure chance. Negating on that evidence means you're mostly cutting terms at random.

The Cleanup Timeline

1. 1Now through October 20: don't negate on performance. Only negate search terms that are clearly irrelevant - wrong product, wrong use case, competitor terms you never want to show on. Relevance doesn't depend on attribution, so those are safe to cut today.
2. 2From October 21: pull a search term report covering October 6-7 and a separate one for a normal two-week period before the event (for example September 15-28). You now have settled event data and a baseline to compare it against.
3. 3Judge each term on combined data: event plus baseline. A term that converted well in September and badly during the event is a pricing or competition issue for two days, not a bad term.
4. 4Lower bids before you negate. If a term is relevant but unprofitable, cut the bid on the keyword or target that triggered it. Negation is permanent until someone remembers to undo it - and nobody remembers in Q4.
5. 5Lock your Black Friday keyword list by early November, so the terms you keep have a few normal weeks of data before the next spike.

What to Negate - and What to Leave Alone

The rule of thumb: negate for relevance, adjust bids for cost.

• Negate: search terms for a different product, size, or use your listing can't satisfy. These waste money in every week, not just event weeks.
• Negate: terms that have reached a meaningful click count across event and baseline combined - for most products, at least 15-20 clicks, or roughly 2x the clicks you normally need per order - with zero orders.
• Bid down, don't negate: relevant terms that converted but at a high ACoS during the event. Their cost was inflated by the event auction.
• Leave alone: terms with only a few clicks and no orders. Not enough data to say anything.
• Leave alone: your branded terms, even if they looked expensive. Competitors bid on your brand hardest during events, and that same pressure is coming back on Black Friday.

Use the Event Data for What It's Good For

Event data is bad for cutting and very good for finding. Search terms that converted strongly during the event, especially ones you weren't targeting directly, are your Black Friday candidates. Add them as exact-match keywords now, so they build normal-week history before November 27.

Our free Search Term Harvester pulls converting terms out of a search term report in a couple of minutes, and the N-Gram Analyzer shows which individual words are wasting spend across many search terms at once - a far safer basis for negatives than one term with five clicks.

Also check event shoppers for retargeting. People who viewed your product during the event and didn't buy are prime audiences for Sponsored Display retargeting in the weeks leading into Black Friday, before they buy from someone else.

Bottom Line

The two days after a big event are the worst time to make permanent decisions. Wait until the attribution windows close, compare against a normal week, cut for relevance, and adjust bids for cost. You'll go into Black Friday and Cyber Monday with a keyword set that's actually been tested - not one trimmed in a panic on October 8.