Microsoft Ads Removes Max CPC October 1: The 3 Bid Strategies That Keep It

The bid ceiling comes off as the matching widens

On the morning of October 2, someone builds a Microsoft Search campaign for the Q4 push, picks Maximize Conversions, and scrolls down for the Max CPC field out of pure muscle memory. It is not there. The campaign sitting directly above it in the same account, built three weeks earlier, still has one.

That is the whole mechanical change, and Microsoft's own notification states it in a single line, reproduced by PPC Land from an email with the subject "Updates to Max CPC for new campaigns": "From 1 October 2026, Max CPC will no longer be available when creating new non-portfolio campaigns." No enumeration of strategies, no migration, no tool. A field that exists on September 30 and does not exist on October 1, for one specific kind of campaign.

The reason this is worth twenty minutes of your week is what landed beside it. On August 19, one day before the Max CPC notice went out, Search Engine Journal reported that "Microsoft Advertising has started rolling out AI Max for Search campaigns globally, expanding availability after several months of testing." AI Max is the suite that lets a Search campaign reach queries beyond your keyword list, generate extra ad copy from your own assets, and pick a different landing page than the one you set.

Read those two together and the shape is hard to miss. Inside 48 hours, Microsoft set a date for removing the control that caps what a click costs and started widening the set of things a campaign is allowed to match. Neither change is dramatic on its own. Together they move where the risk sits in a Search account, and they move it toward the levers you were probably paying least attention to.

What actually changes on October 1

The field that disappears, and where it disappears first

Start with scope, because most coverage compresses this into "Microsoft is killing Max CPC" and that sentence is wrong in two directions.

• Campaign age. The change binds campaign creation only. PPC Land's follow-up is explicit: "The change applies only to non-portfolio campaigns created after that date. Campaigns already running keep the field. Portfolio bid strategies keep it. Target impression share and enhanced CPC keep it too."
• Surface. October 1 is an interface date, not a platform date. Search Engine Journal reports that "Microsoft will initially remove Max CPC from campaign creation in the user interface. The setting will also be removed from Microsoft Advertising Editor, although timing has not been announced. An API update is expected later."

That second detail is the one nobody is planning around. If your team builds campaigns in the web interface, you have a date. If your team builds them from a sheet in Editor or through the API, you have a date for the interface, no date for Editor, and no published behavior for the API. A bulk workflow that writes a Max CPC into every new campaign has no announced deprecation to schedule against, and no confirmation it will keep working either.

The three strategies that keep the ceiling

Microsoft Ads Liaison Navah Hopkins set out the survivors directly: "Target impression share, eCPC, and Portfolio bidding strategies will retain the ability to add a Max CPC." Search Engine Journal reports the same set and adds that Max CPC "will also remain available for new and existing campaigns using portfolio bid strategies."

Keeps the ability to set a Max CPC on a new campaign:

• Portfolio bid strategies, new and existing.
• Target Impression Share.
• Enhanced CPC (eCPC).

Loses it on October 1:

• New non-portfolio campaigns on the standalone conversion and click strategies.

Portfolio is the obvious substitute and the one to think hardest about, because it is not a neutral swap. A portfolio strategy governs several campaigns as one unit, which means the platform can move spend between campaigns inside the group according to its own read of performance rather than your allocation. For an in-house team chasing one blended target, that is fine. For an agency running per-client or per-line-item spend commitments, moving campaigns into a portfolio to keep a CPC cap is a reporting and contractual decision, not a settings change.

Why you will see two different strategy lists

Coverage of this change does not agree on which strategies are affected, and the disagreement is worth understanding rather than picking a side on. Search Engine Journal's version names five: "Beginning Oct. 1, 2026, Max CPC will no longer be available when creating new non-portfolio campaigns using Target CPA, Target ROAS, Maximize Conversions, Maximize Conversion Value or Maximize Clicks." Search Engine Land's account of the same announcement names three: the standalone Maximize Conversions, Maximize Conversion Value and Maximize Clicks strategies.

The notice itself, as reproduced by PPC Land, enumerates nothing at all. It says new non-portfolio campaigns. That is the version that survives contact with your account, because it is the only one that does not depend on which legacy strategy names are still selectable at creation time when October arrives. Audit on the test Microsoft actually wrote: is this campaign new, and is it outside a portfolio.

Why Microsoft says the cap has to go

The conflicting-instruction argument

Microsoft's rationale is not that Max CPC performs badly. It is that Max CPC contradicts the thing you asked for. Search Engine Journal summarizes it as: "Microsoft says Max CPC can interfere with its automated bidding systems, including when the maximum is set above a campaign's average CPC."

That clause about the average is the interesting half. It is easy to accept that a cap below your average CPC throttles a campaign. Microsoft's claim is stronger: a cap sitting comfortably above the average still degrades the system, because a conversion-optimizing bidder needs headroom on the specific auctions where the expensive click is the profitable one. You told it to find conversions at a target, then told it there is a price it may not pay for one. PPC Land quotes Microsoft's own summary of the motive as removing the ability "in order to simplify bidding."

The levers Microsoft points at instead

The recommended replacements are, per Search Engine Journal, "budgets, Target CPA and Target ROAS goals, conversion value rules and seasonality adjustments when appropriate."

That list is worth reading as a statement of what Microsoft thinks control now means, because every item on it is an outcome instruction rather than an auction instruction.

• Budget says how much money exists.
• Target CPA says what an acquisition is worth to you.
• Target ROAS says what a dollar of spend has to return.
• Conversion value rules say which conversions are worth more than others.
• Seasonality adjustments say when to expect the conversion rate to move.

Not one of them says what a click may cost. In this model that is no longer your decision to make, and the replacement is not a weaker version of the same lever. It is a different kind of instruction entirely.

The grandfather clause has no expiry date printed on it

One line in the coverage deserves more weight than it is getting. PPC Land notes that "the company added that further updates on Max CPC would follow." Microsoft has said the existing campaigns keep the field. It has not said they keep it permanently.

Treating today's exemption as durable is how a migration becomes an emergency. Plan as though the campaigns you are protecting on October 1 are protected for this round only, which is a very different posture from assuming a pre-deadline campaign is a permanent safe harbor. This is the same trajectory Google put budget-limited advertisers through in August, when target-based bidding stopped letting campaigns quietly beat their targets: a manual comfort removed, an outcome target promoted, a published date, and no automatic correction.

AI Max, and the name it shares with a Google product

What Microsoft's AI Max actually does

Microsoft introduced AI Max on its own blog in April 2026, describing it as "available in open pilot in May" and as a suite that "uses AI to improve Search campaign performance through relevant, expanded query matching, asset personalization, and smarter URL routing." The same post says AI Max "is an effective way to deliver relevant ads on AI surfaces like Copilot Search and Copilot Answers."

Search Engine Journal's rollout coverage puts the three features in operational terms. Search term matching "can reach queries beyond an advertiser's keyword list using signals from keywords, ads, landing pages, and user intent." And: "Text customization uses existing assets and website content to generate additional ad messaging. Final URL expansion can select a different landing page when Microsoft determines it better matches the user's intent."

Feature	What it widens	The control you get
Search term matching	Queries beyond your keywords	Brand inclusions and exclusions
Text customization	The ad copy itself	Term exclusions for text assets
Final URL expansion	The landing page served	URL rules

Microsoft shipped those controls with the rollout rather than after it. Per Search Engine Journal, "Brand inclusions and exclusions are available with the rollout, along with term exclusions for text asset generation. Advertisers can also use URL rules to limit where final URL expansion can send traffic." Ad group level settings survive too, which is the difference between switching this on for one product line and switching it on for a whole account.

The setting that switches itself on

Here is the part that will surprise people, and it is a single sentence in the reporting. Search Engine Journal: "Microsoft is moving Predictive matching and autogenerated text assets under AI Max. Campaigns already using either feature will have the corresponding AI Max setting enabled automatically."

Everything else stays opt-in, and the same article says so plainly: "The remaining AI Max features will not be activated unless an advertiser opts into them." So the state of any given campaign splits cleanly in two.

• Already on, without you doing anything: the AI Max setting matching a predictive matching or autogenerated text asset feature the campaign was already using.
• Off until you switch it on: every other AI Max feature, on every other campaign.

If you turned predictive matching on years ago and never revisited it, you are already partly inside AI Max without opting into anything, under a product name that did not exist when you made the decision.

Microsoft's own April post framed advertiser control as the point, saying "advertisers steer the system by opting into AI Max and soon, by providing more guardrails like brand inclusions and exclusions, term exclusions, and messaging constraints." The auto-enable is the exception to that framing, and it is the one worth checking in your account this week rather than reading about.

Same name, different platform, different history

If you manage both platforms, you are about to hit a naming collision that reads like a mistake and is not one. Google introduced its own AI Max on the Google blog in May 2025: "Introducing AI Max for Search campaigns, a comprehensive suite of targeting and creative enhancements that brings the best of Google AI to help you take your Search campaigns to the next level." Same name. Same three headline features. A separate product on a separate platform with a separate rollout.

We covered Google's version when Ads Editor 2.13 brought its AI Max controls to Shopping campaigns. Keep the two apart in your head and in your process.

• Google's AI Max: announced May 2025, configured in Google Ads and Ads Editor, with its own brand lists and URL rules.
• Microsoft's AI Max: announced April 2026, rolling out globally from August 2026, configured in Microsoft Advertising, with its own brand lists and URL rules.

Nothing you configure in one touches the other, and a bulk edit that fences in Google's text customization leaves Microsoft's untouched. Two products, two audits, two sets of exclusion lists to keep in sync.

What the two changes do together

A cap removed and a net widened

Take each change on its own and neither is alarming. A conversion-optimizing bidder without a CPC cap is how most accounts already run. A matching layer that finds queries outside your keyword list is how search has worked for years.

Now put them in the same campaign, created after October 1, with no portfolio wrapper. Four things are decided by the system rather than by you.

• The bid, with no ceiling you can type.
• The query, reached beyond the keywords you chose.
• The copy, generated from your assets and your site.
• The landing page, selected when Microsoft judges another one fits the intent better.

Every one of those has a control attached. None of the controls is a price ceiling.

The arithmetic, on a budget you do not change

Numbers make it concrete. Say a new Search campaign runs a $150 daily budget on Maximize Conversions.

• With a $2.50 cap: the budget cannot buy fewer than 60 clicks in a day. That floor is what the cap was really buying you.
• Without it: the same $150 buys 30 clicks if the system judges $5.00 clicks the better route to conversions, or 150 clicks at $1.00 if it does not.
• What did not change: the $150. Your spend ceiling is untouched, on the day and on the invoice.

The cap was never a spend control. It was a click-price control, and its real function was to keep the click count predictable. Remove it and the campaign's daily click volume becomes an output of the model rather than an input you set, which is a genuine loss of legibility even in an account where the change costs nothing.

Microsoft is not alone in narrowing what an advertiser sets by hand. The same week, OpenAI opened ChatGPT Ads in 31 European markets where custom audiences and personalized targeting are unavailable by documentation, leaving context and geography as the only dials. Different platform, different lever, same direction of travel: the inputs a buyer controls are getting fewer, and the ones that remain are budget, targets and what the creative actually says.

The controls that are left, ranked by how much they move

Strip it back and three inputs still belong to you.

• Budget. Untouched, and still the hard ceiling on spend.
• Targets. Target CPA and Target ROAS, which is where Microsoft is explicitly asking you to put your intent.
• Creative. The one nobody lists as a bidding lever, and the one that decides what every bid is competing with.

That third one is not a rhetorical flourish. A conversion-optimizing bidder with widened matching is a machine for finding the auctions where your asset converts. Its ceiling is the quality and variety of the assets you gave it. This is the same conclusion ad creative testing keeps reaching from the other direction: past a point, the winning account is not the one with better bid math but the one with more genuinely different things to test.

Your audit before October 1

Find the campaigns that actually depend on a cap

Do not start from the campaign list. Start from the dependency.

1. Filter to campaigns with a Max CPC set on Maximize Conversions, Maximize Conversion Value or Maximize Clicks, outside a portfolio.
2. Compare the cap to the delivered average CPC. A cap sitting far above the average was decorative and its removal changes nothing. A cap near or below the average was binding, and that is your exposure list.
3. Decide per campaign, not per account. Some of those caps are a margin floor. Some are a fossil from a launch nobody revisited.

Search Engine Journal makes the same point about not over-reacting: "There is also no requirement to remove Max CPC from existing campaigns." Nothing about this change requires you to touch a campaign that works.

Build what you need to keep before the date

This is the only piece of the audit with a hard deadline attached, because the grandfather clause is real for this round. A campaign created before October 1 keeps its Max CPC. A campaign created after it cannot have one unless you wrap it in a portfolio.

If Q4 structure is already decided and some of those campaigns genuinely need a ceiling, building them in September is a legitimate move rather than a hack. Three things to hold in mind while you do it.

• The protection is real but undated. Microsoft has said further updates will follow, so a pre-October campaign is safe for this round and no round beyond it.
• A portfolio is the durable route. It survives October 1 for new campaigns too, at the cost of governing several campaigns as one unit.
• Do not pre-build campaigns you did not want. A campaign created only to bank a setting still has to earn its budget.

Test the removal instead of being handed it

The better version of this work is not defensive. Run the change as an experiment now, in a campaign you picked, instead of meeting it on a Q4 launch in the first week of October.

1. Pick one campaign where the cap is genuinely binding, not one where it sits far above the average CPC.
2. Remove the cap and hold the budget still. Changing both at once measures nothing.
3. Read it after a full conversion cycle, on cost per conversion and conversion volume rather than on clicks.
4. Write down what happened, because that number is what decides your posture on every campaign you build in October.

Microsoft is recommending the same posture for AI Max: per Search Engine Journal, advertisers are encouraged to test the three features together, "although each can be tested individually through optimization experiments." Do that, and do it before the seasonal traffic arrives, because a bidding experiment read against Black Friday demand is not an experiment.

Check the AI Max toggles you did not set

Last, the two-minute job with the highest chance of a surprise. Open a Search campaign that has been running since before the spring and check three things.

• Is an AI Max setting already enabled because predictive matching or autogenerated text assets were on?
• Do your brand inclusions and exclusions exist for the queries that widened matching can now reach?
• Do your URL rules fence final URL expansion to pages you would actually pay to send traffic to?

If the first answer is yes, the question is not whether to turn it off. It is whether the other two are configured for a matching layer you did not knowingly switch on.

The industry direction is consistent enough now to plan around. OpenAI's ad platform has already made the same trade in a much younger auction, where a CPA bid changes delivery and you are still charged per click: "Billing does not change to pay per conversion. OpenAI charges you only when a valid click occurs, and the auction determines the actual CPC."

How Novoads solves the creative supply problem behind an uncapped bid

Search ads are text, so no video tool fixes a Max CPC deadline. What it fixes is the part of the account that inherits the same trade everywhere else you buy: Microsoft Audience, social, and every placement where the asset is a video and the bidder is automated. Novoads generates ad-ready UGC-style video from assets you already have. Upload a product image or write a script, pick an AI actor, and you get a vertical video you can download and run on any ad platform. A video runs roughly $2 to $11 depending on the model and length, which turns "test four angles this month" into a scheduling question rather than a budget one. Volume matters more than any single hero asset, which is the argument behind how many ad creatives you actually need and the reason small teams end up building a creative operations routine instead of commissioning one shoot a quarter.

You can try it for $1, which covers 3 days of access and continues on the $49/mo Inicial plan. Cancel whenever you want.

When the platform takes the cap, creative becomes the cap

For a long time the Max CPC field was where a cautious buyer put their nerves. It rarely changed the outcome and it always changed how the account felt, because it was proof that somewhere in the machine there was a number you had set yourself. On October 1 that proof moves out of the campaign-creation flow, and AI Max moves the query, the copy and the landing page a little further out of it at the same time.

What is left is not nothing. It is a budget, a target, and whatever creative you managed to put in front of the auction that month. Two of those three are a spreadsheet decision you can make in an afternoon. The third is a production problem, and it is the only one where more effort reliably buys more performance. When the platform stops letting you cap what a click costs, the thing you are really bidding with is the ad.