What: Personalisation is shifting from marketer-driven journeys to AI agent-orchestrated actions, requiring new modular and agent-ready infrastructures.

Why it is important: The stakes are concrete: BCG frames the next 12 to 18 months as the window in which organisations will determine which side of a self-reinforcing competitive divide they fall on.

The article traces the evolution of personalisation from marketer-orchestrated journeys to a model where AI agents autonomously select, sequence, and compose customer interactions in real time. This evolution requires organisations to develop four interconnected capabilities: a composable shelf of modular assets, agent architecture, modular tools with persistent state management, and continuous learning and optimisation. The marketer's role is redefined from designing fixed journeys to curating content and setting objectives for AI agents, who then dynamically assemble personalised experiences. This shift promises substantial efficiency gains, such as faster campaign cycles and increased addressable revenue, while also demanding a modular, API-first infrastructure to support agent autonomy. Organisations that delay adopting these agentic approaches risk falling behind competitors who can deliver more relevant, timely, and adaptive customer experiences. The next 12 to 18 months will determine which organisations lead in agent-native personalisation and which fall permanently behind.

IADS Notes: The case for agent-native infrastructure does not rest on a single report. Four recent analyses — from BCG, Inside Retail, and Bain — document the same convergence from different angles: operating model redesign, modular infrastructure, and competitive timing. In May 2026, BCG highlighted how brands are deploying AI-driven agents and new store formats to enhance customer engagement, emphasising the importance of connecting digital and physical experiences while maintaining trust. BCG's April 2026 analysis documented the shift in merchandising to a continuous, data-driven model, stressing that operational agility and modular infrastructure are now critical, with delays in adaptation posing significant competitive risks. Also in April 2026, Inside Retail reported that agentic commerce is rapidly establishing new standards for discoverability and customer relationship management, urging investment in agent-ready APIs and modular systems. BCG's February 2026 analysis argued that technology adoption alone is insufficient — business models and workforce structures require parallel redesign. Finally, Bain & Company in May 2026 examined how AI-generated buyers and synthetic customers are accelerating product innovation and operational agility, necessitating new approaches to data governance and organisational change.

The agentic era of next-best action