In critical industries where downtime is measured in hundreds of thousands of pounds per day, disruption to supply is rarely caused by one thing. More often, it starts much earlier, with small weaknesses in materials management that have been allowed to build in the background: a part that is not available, a stock record that is wrong, a system that is not trusted, or a team working from a spreadsheet because the process around them does not work.
I might be biased, but that is why inventory control should never be seen as an administrative function. If your organisation is operating in a high-risk, high-value environment, it has a direct impact on operational reliability and cost.
Yet across complex operations, inventory is still too often managed reactively. Disconnected systems, inconsistent processes, manual workarounds, and limited visibility between teams create the same problems: critical parts unavailable when needed, high-value stock sitting unused, duplicate purchasing, and warehouses full of obsolete materials.
Those of us who work in operations will recognise this, but why does it happen? Overstocking may feel like a safe option, but it comes at a cost. High-value materials sit unused, storage costs rise, and items can become obsolete as equipment and project requirements evolve. And just because the warehouse might be full, doesn't mean the right material is available. A part might exist somewhere, but if nobody can see it, trust the data behind it, or move it quickly enough, it may as well not be there.
Duplication is another common issue. Without clear visibility, the same materials are often ordered multiple times by different departments or projects, creating unnecessary cost and waste.
From what I see in complex operations across different industries is the pressure on inventory management is only increasing. Supply chains are volatile, lead times are longer, costs are under constant scrutiny and regulatory expectations are not easing.
That creates a difficult balance. You need enough spares and components to keep your operations and projects moving, but not so much that capital is tied up in the wrong stock or warehouses are filled with materials that may never be used.
It’s not just forecasting, it’s governance.
A common misconception is that inventory problems stem primarily from poor forecasting but the root cause is more often weak governance. In my experience, the key issues include:
Lack of standardised processes across sites or operations
Inconsistent data quality and item master management
Poor accountability for inventory decisions
Limited visibility across systems and stakeholders
Weak integration between procurement, warehousing, and operations
Without strong governance, even the best systems and forecasts will fail. Effective inventory control requires clear ownership, disciplined processes, and alignment across the entire supply chain, not just better predictions.
The issue is rarely that people do not care. More often, ownership is unclear, processes have evolved differently across sites, and teams are making the best decisions they can with incomplete information. That is when workarounds become normal, and once they do, consistency and control begin to break down.
Process first. Technology second.
Once the governance is in place, the next step is building greater visibility and predictability into the way inventory is managed. That is where technology can add real value, but only if it is supporting clear processes and good decision-making.
Warehouse Management Systems (WMS) and integrated ERP platforms can transform inventory control when implemented correctly. They provide real-time tracking and traceability, improve accuracy through automation, integrate better with procurement and finance, and provide stronger reporting and analytics.
There is also a growing role for AI-driven tools, particularly where organisations need better visibility, predictive planning and faster decision-making across complex inventories. Used well, these tools can help teams understand usage patterns, lead times, stock risk and supplier performance in a way that is difficult to manage manually.
But technology is not a silver bullet. Without the right processes, data discipline, and user adoption, even the most advanced systems will underperform. In fact, poorly implemented systems can amplify existing issues rather than solve them - the focus should always be on process first, technology second.
What does good inventory control actually look like?
One of the biggest surprises for many organisations I work with is just how much value can be unlocked by getting the basics right: faster response times, lower excess and obsolete stock, better use of warehouse space, and more confident operational decision-making.
Success starts with planning. Inventory strategies must align with operational risk and materials managed through risk-based segmentation, rather than a one-size-fits-all approach. Critical spares, project materials, consumables, slow-moving stock and obsolete items all need to be treated differently.
Next is replenishment. This isn’t just about reordering stock. It’s about setting the right parameters, from minimum and maximum levels based on usage and lead times, to clear reorder triggers and alignment with supplier capacity.
Then comes visibility. Real-time, accurate data is non-negotiable, and decision-making should be based on a single source of truth rather than spreadsheets and assumptions.
Finally, lifecycle management. Materials should be actively managed across their lifecycle, with regular reviews of slow-moving stock to reduce waste and maintain efficiency.
This requires clear and streamlined approval processes for product and financial owners when it comes to disposing of overstocked or obsolete inventory, ensuring stock can be written off, redeployed, or released without bottlenecks
The difference comes down to discipline, accountability, and treating inventory control as a strategic asset rather than an afterthought.
