Everything is a PMAX – The age of automated advertising and what it means for marketers

Digital advertising is entering a new era—one defined by automation, opacity, and the rise of Performance Max-style campaigns across every platform. This article explores how the shift towards less control and more machine-led decision-making is changing the role of marketers, and what you need to do to adapt, survive, and thrive in a PMAX-dominated landscape.

The advertising world is undergoing a quiet revolution—one where control is no longer the marketer’s strongest asset. We’re deep into what some are calling the PMAXification of digital platforms, a period where automation, black-box optimisation, and opaque targeting models are reshaping how ads are served and measured. Whether you’re aware of it or not, nearly every major ad platform is pushing you into their own flavour of Performance Max.

Understanding how to navigate this new landscape isn’t just useful—it’s essential. Because if you don’t evolve alongside these changes, your campaigns will become less effective, harder to scale, and ultimately, more expensive to run.

The Pace of Change Just Changed—Again

The way users engage with content, browse websites, and buy products is shifting faster than ever. We’ve long been told that behaviour is “evolving rapidly”, but now it feels like we’ve gone up another gear entirely. With shortened attention spans, multi-platform journeys, and device-hopping now the norm, any form of linear campaign strategy is starting to feel dated.

Previously, advertisers could rely on clear intent signals: someone searched for a product, clicked an ad, and converted. Simple. Now, touchpoints are fragmented. Discovery might happen on TikTok, consideration on Instagram, and conversion through a branded search on Google days later. It’s no wonder the ad platforms themselves are stepping in to make sense of it all—for better or worse.

From Gas Stove to Slow Cooker

Running ads today feels entirely different to just five years ago. It’s no longer about tweaking bids, refining match types, and split-testing audiences at granular levels.

To put it bluntly: it used to be like cooking on a gas stove. You could adjust the flame, change the ingredients, and taste-test your way through to a great result. Today? It’s like using a slow cooker. You load in your assets—landing pages, images, video, data—and then choose between a handful of vague options like “Sales” or “Leads”. Once it’s going, you’re locked out of the process, left to hope everything’s blending just right.

This shift is unsettling for many performance marketers. After all, we’re expected to deliver tangible results, often under pressure, with limited time and budget. Giving up direct control feels counterintuitive—even irresponsible.

Everyone Has Their Own Version of PMAX

Performance Max isn’t just Google’s thing anymore. Every major ad platform is funnelling advertisers into its version of a fully automated, input-driven campaign model. Meta offers Advantage+ Shopping campaigns; TikTok has Smart Performance; LinkedIn and Amazon both lean heavily into automated delivery models with minimal user control.

At their core, they all follow a similar pattern: “Give us your creative assets, some conversion data, and a budget. We’ll do the rest.” There are levers and signals you can provide, of course, but the overall trend is clear—platforms want marketers to relinquish control in favour of convenience and scale.

Why This Matters: Accountability vs Automation

One of the most under-discussed challenges in this new world is the tension between automation and responsibility. Marketers, especially those working at agencies or in-house teams with defined KPIs, are accountable for outcomes. Clients don’t want to hear “the platform didn’t spend our budget properly” or “the system favoured the wrong audience signal”. They expect predictable returns and tangible reporting.

This accountability becomes harder to manage when campaigns operate behind closed doors. You can’t see which ad is delivering the best conversions, you don’t know how much of your budget went to display vs. search, and you can’t prevent the platform from bidding on branded terms unless you jump through hoops. Transparency has taken a backseat—and that’s a problem.

The Knowledge Gap Is Growing

As platforms become more opaque, the skillset needed to run successful campaigns is changing. The best marketers today aren’t the ones pulling levers—they’re the ones who understand how the systems interpret inputs. Structuring a product feed correctly, building effective conversion tracking, and crafting high-quality landing pages now has more impact than keyword-level optimisation.

Marketers who cling to legacy tactics—thinking that more granular control equals better performance—are often outpaced by those who’ve learned how to feed the machine effectively.

What Can You Do?

The shift doesn’t mean all is lost. On the contrary, marketers can still steer outcomes by focusing on what matters most in the PMAX world.

First, you need to reframe your approach. Rather than trying to control every detail, focus on crafting the best possible inputs. The performance of your landing page, the clarity of your call-to-action, the quality of your creative—all of these now carry greater weight than your keyword strategy ever did.

Secondly, data is your most powerful weapon. Platforms will reward campaigns with strong signals: robust first-party data, accurate conversion events, and meaningful customer engagement. This doesn’t mean you need enterprise-grade CRM setups, but it does mean you can no longer ignore the fundamentals of data tracking and clean analytics.

Lastly, you must rethink how you test. Testing no longer means “Which of these five headlines gets the best CTR?” but rather, “Which combination of audience signals and creative types leads to better outcomes over time?” Success is now measured in weeks, not days, and requires more patience, more observation, and better interpretation of trends.

The Rules Still Apply—They’ve Just Changed

If there’s one thing to take from all this, it’s that the fundamentals still matter—they just manifest differently. You still need to understand user intent, craft compelling creative, and drive towards clear business objectives. But how you execute those things must evolve with the platforms.

Knowing how Performance Max prioritises assets, how different platforms interpret signals, and how to build a meaningful attribution model will set you apart. Not because you’re fighting the system, but because you understand how to work with it.

Not everything needs to be manually controlled, nor should it be. But that doesn’t mean you hand over your budget and walk away. The most successful marketers today are those who’ve learned to shape these automated systems through smart strategy, thoughtful structure, and careful observation.

We’re not saying everything is bad—Performance Max and its counterparts can unlock huge efficiency and scale. But if you’re not aware of how they work, or why they behave the way they do, you’ll be left wondering why your campaigns aren’t performing.

Welcome to the PMAX world. Whether you like it or not, it’s where we all live now.