By Zain Ismail · November 3, 2026 · 14 min read

Google Ads Promotion Mode: Black Friday 2026 Setup Guide

Google Ads promotion mode explained for Black Friday 2026: how ROAS tolerance works, how it differs from seasonality adjustments, and a dated setup checklist.

Google Ads promotion mode lets you schedule a short sale window, from 3 to 14 days, in which a Search or Performance Max campaign accepts a lower return on ad spend and, if you choose, gets extra daily budget. When the window closes, both settings go back to normal on their own. Google launched it in beta on June 15, 2026, and describes it as a way to “capture more queries and conversions during demand spikes” (Accelerate with Google).

Black Friday is Friday, November 27, 2026, and Cyber Monday is November 30. That leaves about three weeks to decide whether promotion mode belongs in your plan, which campaigns get it, and how much efficiency you’re willing to give up. The decision has to be made before the sale starts: while a promotion is active, you can’t edit the campaign’s Target ROAS at all.

Key takeaways

Promotion mode changes your ROAS tolerance, not your conversion-rate forecast. It deliberately trades efficiency for volume during a fixed window. Seasonality adjustments do the opposite: they keep the target and tell bidding to expect higher conversion rates.
The window is 3 to 14 days and ends by itself. Google’s Ads Liaison confirmed there’s no need to come back and switch it off.
Your baseline Target ROAS is locked while the promotion runs. Only the tolerance can be edited, so set the baseline correctly before the window opens.
It’s still a beta for Search and Performance Max. Google’s announcement tells advertisers to contact their account team for access. Don’t build the plan around it until you see it in your account.
Budget-limited campaigns are the weak spot. Since August 17, they bid closer to their stated target, and Google says Exploration “won’t work well” when a campaign is limited by budget.

What Google Ads promotion mode actually does

Google’s announcement describes the feature in one sentence: “Promotion mode lets you set temporary changes to your ROAS tolerance and add extra daily budget during peak periods. This beta is available for Search and Performance Max campaigns” (Accelerate with Google). It works with daily budgets, and its ROAS tolerance adjustment can also be combined with campaign total budgets.

The setup has three parts, according to reports from accounts that have it (PPC News Feed):

A start date and an end date for the promotion.
A Target ROAS tolerance for that period.
An optional extra daily budget.

When the promotion ends, campaigns go back to their original Target ROAS and budget settings. Ginny Marvin, Google’s Ads Product Liaison, corrected practitioners who assumed they’d need a calendar reminder: “With Promotion mode, there’s no need to remember to come back to turn it off. The very first prompt is to set the start and end dates of the promotion (with a time span of 3 to 14 days)” (PPC Land).

How ROAS tolerance changes the target

Tolerance is a percentage of your target, not a number of percentage points. A campaign with a 200% Target ROAS and a 10% tolerance bids toward 180%. On a 500% target, 10% tolerance gives an effective target of 450%, not 490% (PPC Land). A lower effective target lets Smart Bidding justify higher bids, so auctions that were just below your old threshold now clear it.

PPC Land reports that Google recommends starting at 10%, and that Google’s help pages don’t publish the full range of values. As of October 2026, tolerance applies only to campaigns bidding on Target ROAS or Maximize conversion value. Smarter Ecommerce describes promotion mode as eligible on tROAS bid strategies (Smarter Ecommerce). The two sources differ on Maximize conversion value, so check the option in your own campaign settings.

It switches on Smart Bidding Exploration

On the October 15, 2026 episode of Google’s Ads Decoded, Google Ads product manager Tal Akabas said a scheduled promotion turns on Smart Bidding Exploration for its duration, and warned that without uncapped budgets “the system will be constrained” (PPC Land). That fits with PPC News Feed’s description of promotion mode as a feature that “leverages Smart Bidding Exploration.”

Exploration is the feature that lets bidding test queries with plausible but unproven conversion history. Google’s own figures for campaigns using it are +18% unique search query categories with conversions and +19% conversions, from Google internal data covering March 11 to April 11, 2025 (Accelerate with Google). These are platform averages from Google, not independent tests, and none of them measures incrementality.

Promotion mode vs seasonality adjustments vs campaign total budgets

All three tools are built for short events, which is why they get confused. They pull different levers.

Tool	What it changes	Window	Campaign types	Status
Promotion mode	ROAS tolerance (lower effective target) + optional extra daily budget	3–14 days, auto-reverts	Search, Performance Max	Beta
Seasonality adjustment	Expected conversion rate; target stays the same	Best for 1–7 days; API allows up to 14	Search, Shopping, Demand Gen, Display (tROAS/tCPA); PMax and App (beta) on all bid strategies	Live
Campaign total budget	Fixed spend for the whole flight, paced by Google, no daily limit	3–90 days (Search, PMax, Shopping)	New campaigns only	Open beta since Jan 15, 2026

Sources for the table: Google Ads Help on seasonality adjustments, Google Ads API reference, Google Ads Help on campaign total budgets and the Google Ads & Commerce Blog.

Seasonality adjustments: you’re forecasting, not discounting

Google calls seasonality adjustments “an advanced tool” for telling Smart Bidding about expected conversion-rate changes, and warns to use them “only if you expect major changes to conversion rates, because Smart Bidding already manages seasonal events” (Google Ads Help). Its example: if you expect conversion rates to rise 50% during a 3-day sale, add up to a +50% adjustment for those 3 days. No negative adjustment is needed afterwards.

In the API, the conversion rate modifier runs from 0.1 to 10.0, the event can’t be longer than 14 days, one event can cover up to 2,000 campaigns, and events must start and end in the future (Google Ads API). Manager accounts can apply one adjustment across linked client accounts, but client accounts linked after the adjustment is created don’t inherit it.

The difference in one line, from Smarter Ecommerce: seasonality adjustments tell Smart Bidding to expect a temporary spike in conversion rate and “the ROAS target itself never moves.” Promotion mode deliberately loosens the target, “trading some efficiency for volume, on purpose.”

Can you run both at once?

Yes. Marvin confirmed both are available at the same time for Search and Performance Max. But Google’s documentation doesn’t say how the two signals interact when both are active, and it doesn’t say how promotion mode’s tolerance combines with an always-on Exploration tolerance either (PPC Land). If you stack a +50% conversion-rate adjustment on top of a 20% tolerance, you’re doubling up on aggression without a documented model of the result. For the week with the most money on the line, I’d pick one lever per campaign, or split campaigns so you can tell which one did the work.

Campaign total budgets: the spending guardrail

Campaign total budgets let you set one amount for a flight between 3 and 90 days. Google adjusts daily spend toward that total, “there are no daily spending limits, and you will never be charged more than your total budget” (Google Ads Help). Compare that with average daily budgets, where Google can spend up to 2 times the daily budget on a single day, and up to 30.4 times it in a month.

Two limits matter for BFCM planning:

New campaigns only. You can’t switch an existing campaign from a daily budget to a total budget, and you can’t change the budget type after creation.
Targets still bind. If the campaign is limited by its target, spend stays limited. Google’s own advice is to relax the target or use a Maximize bid strategy.

The August 17 bidding change and your BFCM budget

Promotion mode arrived in the same June announcement as a change that affects far more accounts. From August 17, 2026, campaigns that are limited by budget and use Target CPA or Target ROAS started delivering closer to the target you typed in, instead of beating it (Google Ads Help). Google’s example: a campaign with a $10 Target CPA that was getting a $5 CPA now delivers closer to $10. Google adds that it “won’t automatically adjust your bidding targets or budgets.”

The change applies to Search, Shopping, Performance Max, Demand Gen and Travel. App, Video reach and Video view campaigns keep the old behavior; Hotel and Display already had the new one. TechWyse reports the global rollout finished on August 27, 2026 (TechWyse).

What the early data showed

Smarter Ecommerce published campaign-level data on September 14. As reported by TechWyse:

Median CPCs for budget-limited tROAS campaigns rose 15.8% after August 17, from €0.38 to €0.44.
CPCs for campaigns that were never budget-limited fell 13% over the same period.
Median impression share for budget-limited campaigns fell from 40% to 31%. Share lost to budget jumped from 4% to roughly 33%.

PPC Land adds that, in smec’s data, the median budget-limited campaign had been beating its target by about 20%, and that surplus fell to about zero by August 31 (PPC Land). This is one vendor’s dataset, but it’s the most detailed public read so far.

Why this matters for promotion mode

If a campaign is still “Limited by budget”, loosening its ROAS target makes it buy more expensive clicks with the same money. Google says Exploration “won’t work well” when a campaign is limited by budget, according to PPC Land, and Akabas said the system will be constrained without uncapped budgets. So the real BFCM question isn’t “should I use promotion mode?” It’s “do I have the budget to let a looser target actually buy more volume?”

PPC Hero frames the new setup well: “The Bid Target dictates efficiency and margin. The Daily Budget dictates the volume ceiling” (PPC Hero). Promotion mode moves the first lever. Its optional extra daily budget is there to move the second. If you don’t add budget, expect more spend per conversion, not more conversions.

I covered the related budget controls Google launched in October in Google Ads Channel Prioritization: BFCM Budget Setup Guide. If you run PMax with Search partners or Display, set channel priority before you set promotion windows.

Want this applied to your accounts? Get in touch with Zain. I reply on WhatsApp, email and LinkedIn.

The catch: your Target ROAS is locked during the window

Search Engine Roundtable reported in September that Google Ads shows this notice while a promotion is running: “You can’t edit your Target ROAS while promotion mode is active.” It offers to edit the ROAS tolerance instead (Search Engine Roundtable). PPC News Feed reported the same limit and concluded it’s “important to finalize targets before the sale begins” (PPC News Feed).

This has a practical consequence. If your Black Friday promotion window runs November 26 to December 1, you can’t fix a wrong baseline target during your highest-revenue week. You can only move the tolerance. So:

Correct the baseline Target ROAS in early or mid November, after reviewing the effect of the August 17 change.
Give any target change 1 to 2 conversion cycles to settle before the promotion starts. That’s Google’s own guidance for judging budget changes (Google Ads Help).
Treat tolerance as the only in-flight dial, and decide in advance what result makes you lower it.

Who should use promotion mode, and who shouldn’t

Good fits

Ecommerce on Target ROAS with real margin room during the sale. If your discount still leaves profit at a lower ROAS, tolerance buys extra volume on purpose.
Accounts that already manage BFCM by hand-editing targets and budgets. Promotion mode schedules the change and the revert, which removes the error-prone manual revert that Common Thread Collective describes (Common Thread Collective).
Campaigns that aren’t limited by budget, or where you’ll add the optional extra daily budget.

Poor fits

Target CPA lead-gen campaigns. Tolerance is a ROAS concept; the current reports describe it for Target ROAS (and per PPC Land, Maximize conversion value) only.
Shopping campaigns. Google’s beta is for Search and Performance Max.
Brand-new campaigns built for BFCM. PPC Land reports Google discourages testing Exploration on new campaigns without history.
Thin-margin offers. If a 20% discount already takes your break-even ROAS close to your target, a lower effective target can mean selling at a loss.

Common Thread Collective’s warning from June still applies: “Do not build your promotional calendar around the feature until you can confirm access.” Google’s announcement says to reach out to your account team for the beta. Akabas said on October 15 that promotion mode was leaving beta “I think this week”, but I haven’t found a Google announcement confirming that, so treat it as unconfirmed.

Black Friday 2026 promotion mode setup checklist

When	Step	Why
Now (Nov 3–7)	Check whether promotion mode appears in your Search or PMax campaign settings. If not, ask your Google rep.	It’s a beta; access isn’t guaranteed.
Now (Nov 3–7)	List campaigns with Search Lost IS (budget) above 0% over the last 12 months, and compare actual vs target ROAS for the last 30 days.	PPC Hero’s manual cross-check for August 17 exposure.
By Nov 10	Reset baseline Target ROAS where actual performance has drifted from target.	The baseline is locked once the promotion is live.
By Nov 10	Work out break-even ROAS at your sale discount. Set tolerance so the effective target stays above it.	10% tolerance on a 400% target = 360% effective target.
By Nov 17	Choose one lever per campaign: promotion mode or a seasonality adjustment.	Google hasn’t documented how they combine.
By Nov 17	If you want a hard cap on a new sale campaign, launch it with a campaign total budget instead.	Total budgets only work on new campaigns, minimum 3 days.
By Nov 20	Schedule promotion windows, e.g. Nov 26 to Dec 1 (6 days) or Nov 27 to Nov 30 (4 days).	Must be 3–14 days; auto-reverts at the end.
Nov 26–Dec 1	Monitor daily. Only lever available: tolerance. Lower it if ROAS falls under break-even.	Target ROAS edits are blocked while active.
Dec 2 onward	Confirm settings reverted; judge results after 1–2 conversion cycles.	Conversion lag makes day-one reads misleading.

Worked example

Say a PMax campaign runs at a 400% Target ROAS and your Black Friday discount makes 300% the break-even point. A 10% tolerance gives a 360% effective target, which leaves a 60-point margin above break-even. A 25% tolerance gives exactly 300%, so every extra sale it buys is at break-even at best. That’s why Google’s suggested 10% starting point is sensible: start there, and only raise it if the first days of the window show strong ROAS and you still have budget headroom.

Also remember how Google judges Exploration: PPC Land reports Google’s guidance that actual ROAS should land “within about 15%” of the tolerance-adjusted figure while Exploration is active. On a 360% effective target, that’s a result as low as about 306%. Build that spread into your break-even math.

Don’t forget the promotion itself

Google’s campaign total budgets page recommends adding promotions to all product feeds targeted by your promotional campaigns (Google Ads Help). Promotion mode changes bidding, not what shoppers see. The offer still has to be in Merchant Center and your ads.

If you’re reviewing your Google Ads setup before the peak, my free Google Ads book The $10K Mistake is a good companion. For a real ecommerce growth example, see the Tadpull ecommerce case study. Google’s other autumn policy changes are in Google Ads Policy Updates October 2026.

What changed: timeline

Sept 10, 2025: Promotion mode (3–14 days) and campaign total budgets spotted in testing (Search Engine Roundtable).
Jan 15, 2026: Campaign total budgets open beta for Search, PMax and Shopping, 3–90 days (Search Engine Roundtable).
June 15, 2026: Promotion mode beta for Search and PMax announced (Search Engine Roundtable).
July 6, 2026: Bid Target Adjustment Tool and notifications appear in Google Ads.
Aug 17–27, 2026: Target-based bidding change rolls out to budget-limited campaigns.
Sept 2026: Promotion mode reported on daily budgets; Target ROAS edits blocked during a promotion.
Oct 15, 2026: Google PM says promotion mode is leaving beta (unconfirmed).
Nov 27 / Nov 30, 2026: Black Friday / Cyber Monday.

Want this applied to your accounts? Get in touch with Zain. I reply on WhatsApp, email and LinkedIn.

FAQ

What is promotion mode in Google Ads?

It’s a beta feature for Search and Performance Max campaigns that lets you schedule a 3 to 14 day window with a temporary ROAS tolerance and optional extra daily budget. When the window ends, the campaign returns to its normal Target ROAS and budget automatically. Google built it for seasonal events, flash sales and product launches.

What is the difference between promotion mode and seasonality adjustments?

Seasonality adjustments tell Smart Bidding to expect a higher or lower conversion rate and leave your target unchanged. Promotion mode lowers the effective ROAS target through a tolerance setting and can add budget. Google hasn’t documented how the two interact when both run at once.

Does promotion mode turn off automatically?

Yes. Google’s Ginny Marvin said there’s no need to come back and turn it off, because setup starts with fixed start and end dates. The window must be between 3 and 14 days.

Can I change my Target ROAS during promotion mode?

No. Google Ads shows “You can’t edit your Target ROAS while promotion mode is active” and offers to edit the ROAS tolerance instead. Set your baseline target before the window starts.

Is Google Ads promotion mode available for Shopping campaigns?

Not in Google’s beta announcement, which covers Search and Performance Max only. Standard Shopping campaigns can use seasonality adjustments and campaign total budgets instead.

Sources

Want this applied to your accounts?

Get in touch