There is no separate Google Ads budget or bid control for ads in AI Mode. Set the campaign’s budget and bidding strategy according to the result you want, then treat Google’s separate Promotion mode beta as a possible way to adjust ROAS tolerance and daily budget for a peak period—if it is available to your account. AI Mode ad formats, Promotion mode, and Google Ads promotional credits are three different things.
Set the budget and bidding strategy around the campaign goal
In Google Ads, a budget sets the spending limit; a bid strategy tells Google how to pursue the campaign’s goal. With automated bidding, Google adjusts bids to optimize for that goal, while the average daily budget controls overall spend. As Google Ads Help puts it, “Your budget controls your overall spend.” See Google’s guide to setting a bid strategy and budget.
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| What you want | Relevant strategy examples | How to think about the budget |
|---|---|---|
| More clicks | Maximize clicks | Choose an average daily budget that fits the amount you can spend; the strategy aims to increase clicks within the campaign’s constraints. |
| More conversions, such as sales or leads | Maximize conversions or Target CPA | Set a budget that can support the desired conversion volume. Target CPA adds a target cost per acquisition; it is not a substitute for setting the budget. |
| More conversion value or a desired return on ad spend | Maximize conversion value or Target ROAS | Set a budget and, where applicable, a return target that reflect the value of the conversions you track. |
These are strategy examples, not guaranteed results or universal settings. Google describes Smart Bidding as using auction-time optimization. Some strategies may need historical conversion data, and the amount depends on the campaign type; Google does not give one data threshold that applies to every campaign. See About Smart Bidding.
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Choose or adjust a daily budget with performance in view
Budget affects how often ads can show and how many clicks or conversions a campaign may receive. Google’s budget guidance suggests considering more budget when a campaign is constrained by budget but is generating conversions at a reasonable CPA. If spend is well below budget and ads are not showing as often as the budget would allow, it suggests considering broader keyword or location coverage. Neither change guarantees that additional spend will be profitable.
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- Use Google Ads’ Budget Simulator and Performance Planner to review projections before changing spend.
- After a budget change, check actual campaign performance against the promotion’s business economics, such as margin and acceptable acquisition cost.
- Keep the budget decision separate from the bid-strategy decision: raising a budget does not itself change the optimization goal.
These are general considerations from Google’s budget guidance, not a promise of incremental results.
What Google Ads Promotion mode changes
Google describes Promotion mode as a beta for Search and Performance Max campaigns. It is designed for demand peaks such as seasonal events, flash sales, and product launches. Advertisers can schedule temporary changes to ROAS tolerance and add extra daily budget during those periods. Google says the ROAS-tolerance adjustment can also work with campaign total budgets.
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The feature is not an AI Mode-specific bid strategy. Google’s public announcement does not specify a universal ROAS-tolerance setting, a complete eligibility list, or a rollout schedule. It directs interested advertisers to contact their account team, so access is not guaranteed. See Google’s announcement on bidding and budgeting updates.
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- Set the campaign’s normal objective, bid strategy, and budget first.
- Identify the promotion dates and decide how much additional daily spend the event can support.
- In Promotion mode, schedule any temporary ROAS-tolerance and budget changes for the peak period.
- Compare the campaign’s results with the promotion’s economics after the event; do not assume that looser ROAS tolerance or more budget will be profitable.
The sequence above is a practical way to use the controls Google describes, not a Google-prescribed recipe.
AI Mode ads are formats, not a separate budgeting control
Google’s May 20, 2026 announcement describes tests of Conversational Discovery ads, which use tailored creative to address a user’s question, and Highlighted Answers, where relevant ads may be eligible to appear in a recommendation list. Google says these ads are labeled “Sponsored.” The same announcement says its Direct Offers pilot is expanding, allowing brands to upload shopper-facing offers such as discounts, giveaways, and local coupons. Promotion bundling, native checkout for Universal Commerce Protocol merchants, and travel offers were described as forthcoming—not as universally available features.
The announcement does not describe a dedicated “AI Mode promotion budget” or a bid strategy for these formats. Google’s recommendation to build a foundation with AI Max for Search, AI Max for Shopping, and Performance Max is product positioning; it does not establish that every advertiser must use all three or that any one guarantees AI Mode placement. Availability and rollout details are not established by the announcement. Read Google’s announcement on ads for AI-era Search.
Google also reported that 75% of people in a Google-commissioned Ipsos Global Consumer Journeys online survey said they made faster, more confident decisions using AI Mode in Search. The December 2025 survey covered 13,189 adults aged 18 or older who had made a considered consumer-goods purchase in the previous week and used Google AI Overviews and/or AI Mode for shopping. The figure is a global average across selected countries, not weighted to represent population size; it should not be read as a result for all shoppers.
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Do not confuse campaign features, shopper offers, and ad credits
| Term | What it means |
|---|---|
| Promotion mode | A beta campaign feature for temporary ROAS-tolerance changes and extra daily budget during demand peaks. |
| Direct Offers and other AI Mode ad formats | Shopper-facing offers or advertising formats Google says it is testing or piloting; they are not a separate advertiser budget control. |
| Google Ads promotional offers | Conditional account credits for future advertising costs—not cash back or a refund. |
Promotional-credit eligibility and requirements depend on the specific offer. Google says new-advertiser offers generally require an account less than 14 days old at redemption, a valid payment method, and no previous Google Ads advertising for the same business through another account. Existing-advertiser offers may be tied to adopting features or reactivating dormant accounts. These general categories do not replace the offer’s terms; inspect the Promotions page in your account. Google says processing after qualification can take up to 35 days. See About Google Ads promotional offers.
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