Chapter Three:
_{Why Personalisation is Being Redefined}

^{Chapter Three: Why Personalisation is Being Redefined}

Executive Question: What forces are fundamentally reshaping personalisation in 2026?

Why This Matters:

For much of the last decade, personalisation followed a stable formula: collect more data, build better segments, automate more journeys, optimise continuously.

That formula is breaking down – not because it was wrong, but because the environment around it has changed faster than the organisations executing it.

Personalisation is no longer constrained by a lack of technology.

It is constrained by the interaction between four forces that are not aligned with one another: what AI now makes possible, what customers are willing to tolerate, what regulators now require, and what organisations are capable of operating at scale.

That misalignment is what is redefining personalisation.

Which of these forces do you think is having the biggest impact on personalisation right now?

AI and automation
Data privacy and regulation
Rising customer expectations
Loss of third-party data

AI has fundamentally changed the economics of personalisation.

Tasks that once required significant manual effort, such as segmentation, content variation, journey design, and optimisation, can now run in real time across millions of interactions.

For the first time, organisations can move from static journeys to adaptive systems that respond dynamically to behaviour.

This is a genuine step-change in capability. But it introduces a new challenge: when personalisation becomes cheap to produce and easy to deploy, the risk is not scarcity – it is saturation.

Customers are increasingly exposed to constant optimisation: more messages, more variations, more triggers, more automated decisions.

The question is no longer “Can we personalise this experience?” It is becoming “Should we personalise this experience?”

The decline of third-party cookies and increasing restrictions on cross-site tracking have reshaped how organisations collect and activate data, elevating first-party data from a technical concern to a board-level priority.

Yet many organisations are discovering a critical gap between data availability and data usability.

Organisations have more data than ever, but less clarity on how to turn it into actionable insight. CDPs, segmentation tools, and identity resolution are becoming essential infrastructure, but they are also exposing fragmentation across marketing, CRM, and digital ecosystems.

In many organisations, the customer is still not a single view but a collection of disconnected signals, and that fragmentation directly limits the quality of personalisation a brand can deliver.

Force One: AI has Removed the Cost of Scale

Force Two: First-Party Data is Now a Strategic Constraint, Not Just an Asset

Customers are no longer passive participants in data collection.

They are better informed about how personal data is used, and more selective about the experiences they are willing to trade it for – wanting relevance while resisting anything that feels like surveillance; valuing convenience while questioning data usage.

This tension is forcing organisations to rethink how personalisation is positioned, not just how it is executed.

Transparency is no longer a compliance requirement – it is becoming part of the customer experience itself. When it is absent, even well-intentioned personalisation can feel intrusive.

A quieter but increasingly important shift is under way: customers are no longer always making decisions alone.

AI assistants, recommendation engines, and automated agents are beginning to mediate how people search, compare, and purchase, which introduces a new layer of complexity for marketers.

In some cases, the “customer journey” is no longer a journey at all, but a set of decisions filtered by non-human agents.

This raises a question every marketing leader now needs to answer: are we optimising experiences for people, or for the systems acting on their behalf?

Force Three: Privacy Expectations

Force Four: The Rise of Agentic Consumers

_{The biggest misconception is that more data and more automation automatically mean better personalisation. They don’t – the sunny uplands the internet promised us are largely rubbish! Plenty of organisations are deploying AI to cut costs rather than improve experiences, and customers can tell the difference immediately.}

David Balko, Chief Marketing Officer, Wren Kitchens

AI Adoption: High in Principle, Low in Practice

AI is now widely recognised as central to personalisation's future, but recognition has not translated into deployment.

84% of marketing leaders believe AI/ML is critical for personalisation
Yet only 17% report extensive use today (Source: Gartner)

Trust and Privacy are Now Structural Constraints

Personalisation is no longer purely a marketing challenge. Half of companies say privacy regulation has made personalisation more difficult - a reflection that consent management, transparency requirements, and data usage controls are now embedded in every stage of the customer journey.

Importantly, this does not reduce the importance of personalisation. It increases the importance of doing it well.

Reality Check

The industry does not have a personalisation strategy problem – it has a personalisation execution problem.

Most organisations are not limited by ambition or investment, but fragmented data foundations, inconsistent definitions of success, and a lack of organisational alignment across marketing, CRM, data, and technology teams limit them.

_{I think the biggest problem in my experience is that most marketers are deluded about who their customers are. For example, most organisations are very heavily populated with people aged 25 to 39, but that's only 20% of the population. So you can see how already we're baking in a bias.}

Janis Thomas, Chief Marketing Officer, Clothes Doctor

_{Personalisation at scale also requires investment in technology, skills and governance. However, technology alone is not enough. Organisations need alignment across functions and a clear understanding of how personalisation supports broader business goals.}

Haleema Ali, Head of B2B Marketing, ManpowerGroup