Google finally wrote down the sale timer. That does not mean the sale is safe.
On November 4 and 5, 2026, independents including Search Engine Roundtable, Relevant Audience, The Keywordless, and Marxx pointed at a newly detailed Google Ads Help page, answer 18111661, titled About Promotion Mode. The page itself says Promotion Mode is currently in an open beta. It is a campaign setting for short promotional events of 3 to 14 days that temporarily lowers Target ROAS by a chosen tolerance between 5% and 90%, can layer an optional extra daily budget, then automatically returns both settings when the window ends.
That auto-revert is the headline operators wanted after years of forgetting to put targets back after Black Friday. Ginny Marvin’s June 15 clarification, as PPC Land documented at launch, already stressed that the first prompt is a start and end date. The new help page is not a soft pitch. It is a rule sheet that also lets you tell Smart Bidding you will accept a dramatically looser return for up to two weeks, with Smart Bidding Exploration forced on for the flight, and with Exploration tolerance stacking on top of Promotion Mode tolerance. The forgetting problem is solved. The overspend-by-design problem is now explicit.
Black Friday 2026 is November 27. You have weeks, not months, to decide how far you will drop Target ROAS, which campaigns even qualify, and what finance will still call a win when the effective target is soft and Exploration is hunting new queries.
What the help page actually schedules
Promotion Mode sits in campaign settings under Budget and bidding optimization. You tick Ramp up spend quicker on promotion dates, pick start and end dates between 3 and 14 days apart, enter a Target ROAS tolerance from 5% to 90%, and optionally add an extra daily budget on top of the baseline average daily budget. Save. While it runs, the Promotion mode panel shows On with dates, and the Budget column reads like Budget: $X/day (Promotion mode on).
Google’s own worked example is blunt. Baseline: 500% Target ROAS and a $100 average daily budget. Promotion Mode for five days with a 20% tolerance and a $50 extra daily budget. During the sale the effective target becomes 400% and the daily budget becomes $150. After day five the campaign returns to 500% and $100 without a human edit.
That is deliberate acceptance of a lower return, not a forecast that conversion rates will rise. The FAQ on the same help page draws the line against Seasonality Adjustments. With Promotion Mode, bidding aims to achieve the lowered ROAS target via the tolerance. With Seasonality Adjustments, Smart Bidding continues aiming at the original target. Seasonality is a conversion-rate heads-up. Promotion Mode is a finance decision dressed as a toggle.
Power matters as much as the percentage. The page says Promotion Mode is powered by Smart Bidding Exploration. Every campaign in an active promotion uses exploration, even if the standalone Smart Bidding Exploration setting is off. If Exploration is already on, the tolerances add. Google’s wording: if Promotion Mode tolerance is 20% and Exploration tolerance is 20%, the total tolerance is 40%. Relevant Audience notes that Google does not restate the resulting target for that stacked case. Applying the same arithmetic as the single-tolerance example would take a 500% baseline to 300% at 40% total. Treat that as math from Google’s example, not a separate Google claim. Either way, stacking without a written floor is how a “modest” 20% sale setting becomes a much softer effective target.
Eligibility is the real Black Friday gate
The help page is narrow. Supported: standard Search and Performance Max campaigns that use Target ROAS bidding at the campaign level. Not compatible currently: portfolio bid strategies or shared budgets. Works with average daily budgets and campaign total budgets, but the extra daily budget option is not available for campaign total budgets. Google tells those advertisers to raise the total budget manually in campaign settings if they want more spend during the flight. Maximize Conversions, Target CPA, Maximize Clicks, and manual bidding are outside the list as written, because the page names Target ROAS as the supported strategy.
Performance Max gets a second fence. The setting can appear on PMax campaigns, but Smart Bidding Exploration initially applies to Search inventory only. Google writes that Retail will be available in November 2026. Campaigns that serve heavily on other networks “will not see as large of an effect” from bidding exploration because exploration only applies to the search portion. If your Black Friday PMax is Shopping-led and search is a thin slice, do not sell the room on “Promotion Mode will open the whole funnel.”
Two more locks catch people mid-sale. While a promotion is active, you cannot change baseline Target ROAS or baseline average daily budget outside the Promotion Mode panel. All ROAS and budget edits during the flight must go through that panel. Once the promotion has begun, you cannot change the start date. You can move the end date if the total flight stays within 14 days, or turn Promotion Mode off to return to baseline. Standard spending limits still apply: Google repeats that you will not be billed more than twice your daily budget in a single day. The extra daily budget edits the daily budget for the promotion period, so the 2x cap rides on the promoted daily figure. If the campaign becomes limited by budget, Smart Bidding Exploration may stop working. Google points at the missed opportunity report and Performance Planner for sizing room.
Lead times are not optional flavor text. New campaigns: build and set up at least 48 hours before the promotional period so ads are approved and ready. Existing campaigns: run at least one full conversion cycle on a daily budget before applying Promotion Mode so bidding has learning data. After the flight, settings return automatically, but if targets or budgets changed substantially, Google asks for 1 to 2 conversion cycles for Smart Bidding to stabilize before you treat post-sale numbers as normal.
The help page lists no country, language, or currency restrictions, and it also does not confirm global availability. Relevant Audience and The Keywordless both land on the same operator check: open the panel and see whether it appears. There are no uplift figures, case studies, or expected ROAS deltas on the help page. Do not borrow Google’s separate Smart Bidding Exploration averages from the June product package and paste them onto Promotion Mode. Those are different claims for a different setting.
The forgetting fix still spends on purpose
The product story is reversible bidding for short sales. The marketing consequence is that reversible is not the same as conservative.
A 90% tolerance on a 500% Target ROAS is not a rounding error. It is an instruction to chase volume at a return the brand would never accept in January. Even Google’s milder 20% example moves 500% to 400%. Add Exploration at another 20% and the total tolerance is 40%. Add an optional extra daily budget and the 2x daily bill cap rises with it. Turn that on for a 14-day window that overlaps Cyber Week without a written floor, and you have built a system that will spend hard, explore new queries, and only then hand you the baseline back.
Seasonality Adjustments will not save a team that confused the two. Seasonality keeps the original target and tells the system conversion rates may spike. Promotion Mode lowers the target the system aims at. If finance signed a seasonality story and media enabled Promotion Mode, the account is optimizing to a different bargain than the deck.
Portfolio and shared-budget accounts face an exit cost the help page does not soften. Those campaigns are ineligible as written. Moving a campaign off a portfolio strategy or shared budget right before a sale can disturb learning. The Keywordless and Relevant Audience both urge eligibility checks now, not the morning of November 27. That is the middle-link job: map which sale campaigns are campaign-level Target ROAS with their own budgets, which need a structure change with lead time, and which stay on Seasonality or manual budget lifts instead.
What to do this week
Write the ROAS floor with finance before anyone picks a tolerance. Name the break-even return, the lowest effective Target ROAS you will accept for Black Friday and Cyber Week days, and whether Exploration is already on. If Exploration is on, subtract its tolerance from the room you think you have. Put the number in the media brief. A slider without a floor is not a strategy.
Build the eligibility map. For every campaign that will spend into the sale, record type (standard Search or Performance Max), bid strategy (campaign-level Target ROAS or not), budget type (average daily, shared, or campaign total), whether the Promotion mode panel appears, and whether PMax spend is search-heavy or not. Flag portfolio and shared-budget campaigns as ineligible unless you complete a structure change with enough learning time. Flag campaign-total budgets that need a manual total-budget lift because extra daily budget is unavailable.
Do the Exploration stack math in one line. Example shape: Promotion Mode tolerance X% plus Exploration tolerance Y% equals total tolerance Z%. State the implied effective target using Google’s single-tolerance arithmetic style, and label stacked results as calculated from Google’s example method when Google has not restated the combined target. Monitor closely if both run, which is Google’s own advice.
Honor the PMax Search-only caveat. Tell stakeholders that exploration during Promotion Mode currently applies to search inventory, with retail called out for November 2026 without a day-level ship date on the help page. Do not promise Shopping-network fireworks from this panel alone.
Price the portfolio and shared-budget exit. If the money campaigns sit in portfolio Target ROAS or shared budgets, decide this week whether to restructure with a conversion-cycle buffer, or to skip Promotion Mode and use Seasonality plus planned budget edits instead. Last-minute exits are how you buy a learning reset on the worst week of the year.
Respect lead times and settle time. New campaigns need about 48 hours before the flight. Existing ones need at least one full conversion cycle on a daily budget first. After the sale, block 1 to 2 conversion cycles before judging baseline performance. Set the start date carefully: once the promotion begins, that start date does not move.
Remove CPC bid limits on flights you intend to explore. Google says bid caps restrict opportunistic bids on new traffic. If you need a hard CPC ceiling for brand safety, you may not want Promotion Mode on that campaign at all.
Size optional extra daily budget from missed opportunity and Performance Planner, then remember the 2x cap. Extra budget that still leaves the campaign limited can mute Exploration. Extra budget that doubles the daily figure also doubles the single-day billing ceiling the platform describes.
Keep Seasonality and Promotion Mode mentally separate in the war room. One keeps the original target. One aims at a lowered target. You can discuss both. You cannot brief them as the same lever.
The timer is not the strategy
Promotion Mode is a reversible sale dial with written rules. Open beta. Three to fourteen days. Five to ninety percent Target ROAS tolerance. Optional extra daily budget. Exploration always on for the flight. Tolerances that add. Search and Performance Max on campaign-level Target ROAS only. Baseline locked outside the panel. Start date fixed once live. Two-times daily bill cap still in force. No uplift promise on the help page.
The marketing decision is how far you will drop Target ROAS for the sale, on which eligible campaigns, with whose signed floor, before Black Friday turns a forgetting fix into two weeks of intentional soft returns. Write the floor. Draw the map. Then touch the timer.
