Metroplan defines this as the structured analysis and improvement of stock levels, forecasts, replenishment parameters and planning logic, with the aim of reducing stock levels and tied-up capital in a cost-effective manner.
Stock optimisation: Targeted reduction of stock levels and tied-up capital
Excessive stock levels tie up capital, increase storage costs and mask structural weaknesses in planning and control. At the same time, reducing stock must not come at the expense of delivery capability. Companies therefore need an approach that does not simply reduce stock across the board, but optimises it economically on the basis of reliable consumption forecasts and differentiated stock management strategies.
Manage stock levels cost-effectively and free up working capital
Metroplan helps companies to reduce stock levels in a targeted manner and free up tied-up capital without unnecessarily jeopardising security of supply. This is based on robust forecasts, appropriate forecasting models and a nuanced analysis of actual consumption trends. The result is a stock management system that combines operational requirements with financial targets. From our project experience, we know that inventory trends can be reliably assessed even in the face of economic fluctuations or exceptional events such as political crises. The key lies in analysing inventory trends over time and their relationship to turnover or purchasing volumes. This enables potential savings to be realistically assessed and measures to be prioritised on a sound basis.
Why forecasting models and forecasts are essential for inventory optimisation
Effective inventory optimisation requires that future requirements be estimated as reliably as possible. Simple averages or rigid planning assumptions are generally insufficient for this purpose. Instead, historical consumption data must be analysed, demand patterns identified, and suitable forecasting methods applied for different product and demand profiles. Our project experience shows that poor data quality is rarely the actual problem. The stock data itself is usually reliable; far more often, incomplete or inadequately structured planning assumptions from Sales & Operations Planning (S&OP) lead to unnecessary stock levels and inaccurate replenishment planning.
- Systematically analyse consumption trends
- Select suitable forecasting models for different demand patterns
- Using forecasts as the basis for replenishment planning and target stock levels
- Regularly reviewing and adjusting planning parameters
Reliable forecasts not only help with determining stock levels, but also with safety stock, replenishment parameters and the prioritisation of measures. The more accurately future demand can be estimated, the more effectively stock levels and tied-up capital can be reduced.
Accurately identifying trends, seasonality and the product life cycle in consumer behaviour
Not every item follows a stable or linear consumption pattern. Many product ranges are subject to seasonal fluctuations, trends, promotional peaks, product launch phases or a structural phase-out within the product life cycle. It is precisely these patterns that must be taken into account in the forecasting logic if stock levels are to be optimised reliably.
- Identifying seasonal variations in demand and planning for them correctly
- Recognising positive and negative consumption trends at an early stage
- Taking product life cycles into account in stock parameters
- Assess demand patterns in a nuanced way rather than managing them with a one-size-fits-all approach
Metroplan therefore assesses not only stock levels but also the quality of the planning logic behind the stock. Items with stable demand, seasonal peaks, erratic behaviour or a product life cycle coming to an end require different forecasting and management approaches.
The Metroplan approach to optimising your inventory
1. To ensure transparency regarding stock levels, reach and tied-up capital
To begin with, we analyse stock structures, coverage, stock turnover, excess stock, missing items, capital tied up and the underlying stock planning parameters. This provides a robust picture of the initial stock situation and the key economic levers.
In doing so, we always examine stock trends over time and in relation to turnover and purchasing volumes. This enables us to assess potential realistically and distinguish short-term one-off effects from structural causes.
2. Analyse consumption data and usage patterns
We then analyse historical consumption patterns, fluctuations in demand, seasonal profiles, trends and life-cycle effects. This reveals which items or material groups should be managed using which forecasting and planning approaches.
3. Evaluate forecasting models and forecasting logic
In the next step, we assess whether the existing forecasting methods align with the actual characteristics of demand. Where necessary, we develop a more robust forecasting framework that effectively combines qualitative and quantitative influencing factors. We pay particular attention to the quality of the upstream planning assumptions in the S&OP process. This is because incomplete or inconsistent planning logic often has a greater impact on stock levels than the actual master data.
4. Derive target stock levels, safety stock levels and planning parameters
Based on the forecasts and supply requirements, we determine economically viable target stock levels, safety stock levels and planning parameters. In doing so, we balance delivery capacity, lead times, service levels and capital tied up.
5. Implement the action plan and governance model
Finally, specific measures are defined to reduce stock levels, adjust parameters, streamline the product range, improve forecasting and embed the process within the organisation. In this way, stock optimisation becomes not a one-off exercise, but a control approach that is effective in the long term.
For which companies is stock optimisation particularly relevant?
- Companies with a high proportion of capital tied up in stock
When a significant proportion of working capital is tied up in stock, stock optimisation becomes a direct means of improving liquidity and financial flexibility.
- Businesses with fluctuating demand or demand that is difficult to forecast
Seasonal fluctuations, shifts in trends, volatile markets and diverse product ranges make reliable planning difficult. A nuanced forecasting approach is particularly important in this context. - Companies with high levels of excess stock or outdated warehouse structures
Where there are historical stock build-ups, slow-moving items or stock planning parameters that no longer meet requirements, there is often considerable potential to reduce stock levels and free up tied-up capital. - Companies facing increasing demands on service and delivery capacity
Inventory optimisation is also important when delivery requirements are high. The aim is not merely to reduce stock levels, but to strike the right economic balance between availability, risk and capital tied up.
The benefits: reduce stock levels, ensure delivery capability, free up working capital
Structured inventory optimisation provides transparency regarding the factors driving capital tie-up and inventory build-up. Companies gain a robust basis for systematically reducing stock levels whilst at the same time managing supply security and service levels in a controlled manner.
Furthermore, a forecast-based approach improves the quality of planning. Trends, seasonality and product life cycles are taken into account more systematically, making forecasts more reliable and measures more sustainable in their impact.
In our projects, we have already achieved sustainable stock reductions of over 30 per cent on this basis. At the same time, urgent and special deliveries have been reduced by more than 50 per cent, and on-time delivery rates of over 98 per cent have been achieved for orders.
Conclusion on stock optimisation
Inventory optimisation is the right approach when companies wish to reduce stock levels and tied-up capital not on a blanket basis, but on the basis of reliable forecasts and detailed consumption analyses. Metroplan supports you in aligning forecasting models, replenishment logic and inventory parameters in such a way that economic benefits and operational stability are reconciled.
Our experience from numerous optimisation projects shows that there is significant potential for reducing stock levels without compromising delivery capability – provided that forecasts, planning assumptions and replenishment logic are considered holistically.
FAQ on stock optimisation
What does Metroplan mean by ‘portfolio optimisation’?
How does stock optimisation differ from simply reducing stock levels?
Inventory reduction often focuses solely on the quantity of stock. Inventory optimisation goes further and takes into account forecast quality, demand patterns, service requirements, lead times and operational risks.
Why are forecasts so important for stock optimisation?
Because stock levels can only be managed efficiently if future consumption is estimated realistically. Reliable forecasts form the basis for target stock levels, safety stock and planning parameters.
What role do seasonality and the product life cycle play?
Seasonality, trends and life-cycle effects have a significant impact on future demand. If these patterns are not taken into account, this often leads to excess stock or stock shortages.
Can inventory optimisation also improve working capital?
Yes. As stock can tie up a significant proportion of working capital, a commercially sensible reduction in stock levels directly leads to a reduction in capital tied up.
Does Metroplan also provide support with implementation?
Yes. On request, Metroplan not only supports the analysis but also the implementation of measures aimed at improving forecasts, adjusting parameters, streamlining the product range and embedding these changes within the organisation.
Contact
Your contacts
Dr. Thomas Mielke
Managing Partner
Andree Siever
Senior Manager
