BFCM 2025 Playbook: Why Ecommerce Ad Wins Are Decided Before Nov. 27

Black Friday falls on Nov. 27 and Cyber Monday on Nov. 30, and according to a new full-funnel ecommerce playbook, the advertisers who win that week will have done most of the decisive work before Thanksgiving. The guide, published by veteran practitioner Tony Adam, lays out a three-phase plan: fill the funnel in early November, give bidding room to capture demand during peak week, and keep selling to that same audience through December.

Why does early November matter so much?

Adam's account data shows that what converts during BFCM and the holidays overwhelmingly comes from people who found the brand weeks, or even months, earlier. By Black Friday, every retailer in a category is bidding for the same shoppers. The pre-season job is simple to state: grow prospecting as much as possible so a larger audience is waiting to convert down funnel.

"In our accounts, what converts during Q4, specifically BFCM and Holiday, comes from people who found you in the weeks, or even months before," Adam writes.

On Meta, the mechanics are unforgiving. An ad set typically exits the learning phase after about 50 results in the week following its last significant edit. Meta itself notes that ad sets still in learning are less stable and usually carry a higher CPA, and it warns that frequent budget changes can push an ad set back into learning. The fix is to step budgets up gradually through early November so prospecting is stable before peak week.

Creative follows the same logic. Meta recommends waiting to edit until an ad set is out of learning, because edits reset the process. Build BFCM creative early and launch it days, or weeks, ahead of Black Friday. On Google, the official retailer guidance is to upload new holiday asset groups at least two weeks early so they clear approval, with asset group scheduling switching them on when the sale starts.

Takeaway: an ad set relearning during peak week is an ad set overpaying during the most expensive week of the year.

What should you change on Google now?

Google's retailer guidance says a lower ROAS target can maximize visibility for priority products in the pre-peak browsing period. Adam's advice: if you plan to lower ROAS targets to build volume, do it in early November, not during BFCM week. Record where targets and budgets started, so you know exactly what to reset in December, and decide now which date ranges your January review will compare.

The offer itself should already be locked. Merchant Center promotions can be marked for new customers, and Google shows that badge only when it judges a shopper likely to be new — though it doesn't guarantee existing buyers never see it. Adam's Merchant Center checklist:

• Use sale_price instead of overwriting price. Strikethrough and sale badges in the U.S. require a 5%–90% discount and a regular price charged for at least 5 of the past 30 days.
• Match the site. Sale price must match landing page and checkout, with both prices shown; mismatches get corrected or disapproved.
• Add a time and time zone to sale dates. Without them, Google defaults to midnight–11:59 PM UTC — meaning a Pacific brand's sale starts at 4 PM on Thanksgiving.
• Load promotions early. Google reviews each one, and free shipping promotions require a coupon code.

How do you capture demand during BFCM week?

Budget headroom comes first. A Google Ads campaign can spend up to two times its daily budget on a given day, but no more than 30.4 times its average daily budget in a month. A budget sized for an average November day can run dry on Black Friday. Google's budget recommendations flag campaigns at risk of stopping on the busiest days.

For bidding, Google built seasonality adjustments for exactly this case. Its retail guidance: use one for short events where conversion rates are expected to change by more than 30% in under seven days — like Black Friday weekend — and only on campaigns with conversion history. If Black Friday converted at roughly double your November baseline in past years, that ratio is your input. For longer promotions or smaller swings, adjust ROAS targets manually and remember to reset them. A seasonality adjustment reverts on its own when the window ends.

Then let harvest campaigns absorb the extra money. In Adam's accounts, prospecting CPMs peak during BFCM week and prospecting looks bad on reporting, while branded search and retargeting convert at their cheapest. He still keeps top-of-funnel prospecting running, because people remain in discovery mode — and shoppers who arrive through November prospecting regularly buy in December, especially for higher-consideration products.

Things to fix immediately during the week: product disapprovals, feed errors, promos missing from listings, dead conversion tracking (fix, then apply a data exclusion covering at least 90% of affected clicks, per Google's guidance — never remove one once applied), and budget-capped campaigns hitting target. Higher Meta CPMs, one bad ROAS day, Performance Max spend shifting between asset groups, and heavy retargeting frequency are all normal for peak week. "They can wait until December 2," Adam writes.

Takeaway: give the bidder room, signal the promo once, and spend the surplus where harvesting is cheapest.

What happens after Cyber Monday?

December is where the funnel pays off, usually with less competition than Black Friday itself. Everyone who visited during peak week without buying is now the warmest audience. Adam's advice: build retargeting around them on both platforms and lead with shipping deadlines, not deeper discounts. The urgency of the second-week-of-December shipping cutoff is, in his accounts, one of the strongest messages of the season — and it avoids training shoppers to wait for the next discount wave.

When promo pricing ends, conversion rates fall back toward normal, which typically shows up as a few days of overbidding that settles on its own. Reset targets to pre-holiday levels, wait a few days before reacting, then clean up: expire sale price dates, end finished promotions, and pull countdown copy from every campaign. New customers arriving in early December are the first real read on whether the full-funnel work paid off — and the number to bring into the January review.

If you do only one thing this week, Adam says, pull last year's Black Friday conversion rate against your November baseline. It tells you whether a seasonality adjustment is worth setting, and exactly what to set it to.