Gartner Supply Chain Planning Summit 2026: What is planning actually for?

After two days at the Gartner Supply Chain Planning Summit 2026 in London, one question kept resurfacing: what is planning actually for?

It sounds like a simple question, but it sat underneath many of the conversations, keynotes and discussions throughout the event. This year’s theme, “Plan With Insight. Deliver With Impact.”, challenged attendees to think beyond forecasts, reports and technology, and focus on the outcomes planning is supposed to deliver.

More planning activity doesn’t necessarily create better decisions

One of the sessions that set the tone early was Atul Dighe’s keynote, The Planning Illusion.

The message was uncomfortable, but important. Volatility is no longer a temporary disruption. It has become a structural feature of the business environment. Yet many organisations continue to respond in the same way they always have: more tools, more data, more scenarios and more meetings.

The challenge put forward was clear: more activity is not the same as better planning.

If planning does not help the business make better decisions, it risks becoming an exercise in process rather than value creation. Ultimately, planning exists to support decision-making, not to produce increasingly sophisticated forecasts.

Strategy should start with the customer, not the system

Another idea that resonated throughout the summit was the importance of aligning planning with business strategy.

Too often, organisations begin transformation programmes by focusing on technology. Yet effective planning starts with understanding customers, products and priorities. If businesses cannot clearly define which customers matter most, which products require differentiated treatment, and what success looks like for each segment, even the most advanced planning technologies will struggle to deliver value.

Segmentation may not be the most exciting topic in supply chain planning, but it remains one of the most powerful foundations for better decision-making.

The AI conversation is becoming more realistic

As expected, artificial intelligence was a major theme across the event. However, the conversation felt noticeably different from previous years.

Rather than focusing on bold claims about AI transforming everything, discussions centred on adoption, explainability and trust.

Eva Dawkins’ review of the 2026 Hype Cycle for Supply Chain Planning Technologies highlighted which innovations are gaining traction and which remain some distance from widespread adoption. More importantly, it reinforced an issue many organisations continue to face: if planners do not trust an AI recommendation, they will override it.

Technology can generate recommendations, but value is only realised when people understand and act upon them.

The real transformation is human

Among the most thought-provoking sessions was Cristina Carvallo’s discussion on the rise of the end-to-end planner.

As technology takes over more routine analytical work, planners are increasingly expected to coordinate decisions across functions, challenge assumptions and connect operational choices to commercial outcomes.

That requires a different skillset. Commercial awareness, curiosity, communication and the ability to tell a compelling story with data are becoming just as important as technical planning expertise.

Many organisations talk extensively about digital transformation. Yet one of the strongest messages from the summit was that the most significant transformation may actually be taking place within the planning profession itself.

Go-live is only the beginning

Change management also featured prominently throughout the agenda.

Julia von Massow’s session on risk and transformation highlighted a common challenge: organisations often view system go-live as the finish line. In reality, it is only the starting point.

Technology implementation alone does not guarantee value. Adoption, behaviours and governance ultimately determine whether transformation programmes achieve their objectives.

This message reinforced a broader theme from the summit: successful planning transformation depends just as much on people and processes as it does on technology.

Bridging the gap between planning and execution

One of the less explicit, but equally important, themes running through the event was the gap between planning and execution.

Organisations invest considerable effort in developing plans but often spend less time evaluating what happened afterwards. Did the plan survive contact with reality? If not, why not? What can be learned?

Closing this loop is critical. It is where resilience is built, productivity is improved and, increasingly, sustainability goals are either achieved or missed.

Five practical challenges for planning leaders

Rather than treating the summit as a series of interesting presentations, there are several practical actions that organisations can take away:

1. Run a “stop doing” audit

Review every planning report, KPI and meeting. Ask a simple question: which decision does this support? If nobody knows the answer, consider removing it and assess the impact.

2. Segment before you automate

Before introducing new AI capabilities, establish clear customer and product segmentation. Define service, inventory and cost policies first, then apply technology where it will create the greatest value.

3. Make AI explainable

Choose a single AI-driven recommendation and ensure every planner can explain why it was generated. If override rates remain high, address trust before expanding adoption.

4. Design the planner of 2028

Consider which skills future planners will require and identify development actions today. The capabilities needed in an AI-enabled planning environment are already emerging.

5. Measure decision quality

Forecast accuracy remains important, but organisations should also evaluate the quality of decisions made during S&OP and IBP processes, and learn from the outcomes over time.

Better decisions, not bigger plans

If there was one overarching takeaway from the Gartner Supply Chain Planning Summit 2026, it was this: volatility is not going away.

The organisations that thrive will not necessarily be those with the most sophisticated systems or the most detailed plans. They will be those that make better decisions, faster, supported by people who understand the business and technology they trust.

In the end, perhaps the most important lesson from the summit is that planning is not about creating the perfect forecast. It is about enabling better business decisions.

Author: David Food