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At 6 a.m. Pacific the campaign looked healthy. Daily budget set, bids competitive, deals live. By 11 a.m. it was dark.
The traffic didn't stop. The budget did.
Day 1 carries the event. Roughly 35% of the entire four-day volume lands in the first day, and a disproportionate share of that in the morning rush. At the same hour, every seller in your category floods the same auction, and CPCs on your head terms jump 20–40% over baseline — on top of a base already sitting at record highs going into the event. Set your daily cap at a normal-day number and it empties before the day's best conversion hours arrive.
That's the trap. You spend the morning paying premium CPCs to build awareness, then go dark right as the high-intent evening shoppers show up to buy. You funded the top of the funnel and abandoned the bottom. The awareness you paid for converts for someone else.
The fix isn't bigger bids. It's budget headroom. Operators who clear Day 1 clean run 3–5x their normal daily budget — not because a click costs 5x, but because volume and conversion both spike. Conversion rates run several times baseline during the event, which is exactly why the elevated spend pays. The lever that matters is making sure the campaign is still alive at 8 p.m., not raising your bid at 8 a.m.
The second move is protecting the evening. The highest-converting window isn't the morning scramble — it's the evening, when deal-hunters who browsed all day come back to check out. Operators who daypart their budget, reserving a real share for the evening, capture the conversions the morning crowd only window-shopped.
The translation: On Prime Day the campaign that wins isn't the one with the highest bid. It's the one still running when the buyers show up. Budget pacing is the whole game on Day 1 — and the mistake is always the same: a normal-day cap on the highest-volume day of the year.
THE BRIEF
Day 1 is live. Prime Day runs June 23–26, and the first day alone can represent 35%+ of total event volume. The morning builds traffic; the evening converts it.
CPCs at record highs. Sponsored Products CPCs hit record levels heading into the event, and a June 3 Bid+ overhaul changed how dynamic bidding lifts placements — accounts running last quarter's bid rules are quietly overpaying on every term.
Don't cut on June 27. The velocity and ranking boost outlast the event. Operators who slam budgets to zero the morning after surrender 7–10 days of momentum they already paid to build.
QUICK WIN
This morning's move: Open Campaign Manager → Budgets and compare each deal campaign's daily cap to its projected Day-1 spend (last Prime Day's spend × 3–5). For anything that will cap out, set a Budget Rule to auto-increase during the event window, or raise the cap manually now. Then set a dayparting rule that protects evening hours. The goal isn't to spend more per click — it's to still be live at 8 p.m.
The sellers who win today aren't the ones who bid hardest at 8 a.m. They're the ones who'll still be live at 8 p.m., when the people who browsed all day finally check out.
Set the budget headroom now, before the morning rush eats it.
Have any questions? Grab a 15-minute slot here: book a time here.
See you Friday.
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— Dan
