More reliable service levels
Strategic buffers absorb variability before it leads to a breakdown. The customer receives what was agreed upon, even when demand deviates from forecasts or a supplier falls behind schedule.
Demand-Driven Material Requirements Planning (DDMRP)
sedApta's DDMRP enables materials planning to respond to actual customer orders, not estimates. Less unnecessary inventory, greater efficiency throughout the supply chain.
From Traditional MRP to Actual Demand: Why Change Is Necessary
MRP is a robust tool designed for a production environment that is more stable and predictable than the current one. It works well when demand is steady, lead times are consistent, and suppliers are reliable. When one of these conditions is no longer met, forecast-based planning begins to result in the wrong inventory being in the wrong place at the wrong time.
Anyone who plans production knows this: the plan starts with a forecast, the forecast diverges from reality, and you end up chasing one emergency after another. Safety stock levels rise to offset uncertainty, but service levels do not improve accordingly. According to Gartner, manufacturing companies that use traditional MRP tie up an average of 20–30% of their working capital in inventory resulting from forecasting errors, not from actual demand.
DDMRP is based on a different approach. Instead of projecting future demand and building your plan around that estimate, place strategic buffers at critical points in the supply chain and generate purchase orders in response to actual demand as it arises. The signal that drives the system is the customer order, not the forecast.
This does not mean eliminating forecasts; it means reducing reliance on them for day-to-day operational decisions, using buffers to absorb variability instead of trying to anticipate it with increasingly elaborate estimates.
What, specifically, changes when planning is based on actual demand?
Switching to demand-driven MRP doesn't mean starting from scratch. This means giving existing planning a more robust framework, one capable of handling variability without relying on increasingly complex forecasts.
The results are evident where it counts: less capital tied up in inventory, fewer production emergencies, and greater control over daily priorities.
Lower inventory levels, free working capital
DDMRP eliminates inventory caused by forecasting uncertainty, not the inventory required to maintain cash flow. The result is a leaner inventory, sized to meet actual demand rather than worst-case scenarios.
A practical response to change
When demand changes, the buffers adjust dynamically. The system does not require a complete cycle: it responds to the signal in real time, reducing the time between the change and the operational response.
Easier-to-manage planning
Fewer exceptions to manage manually, fewer last-minute rushes, and clear priorities for those carrying out the work. The planner stops putting out fires and goes back to planning.
Material Requirements Planning (MRP) has been the backbone of manufacturing systems for the past 50 years. With MRP, you can specify which materials and parts to order, how many of each are needed, when they will be needed, and when the work must begin in order to complete the job so that the products are ready by the completion/delivery date agreed upon with the end customer.
Traditional Material Requirements Planning is inherently driven by forecasts. However, precisely because these forecasts are based on past activity, they are not always accurate in predicting the future.
Today’s supply chain, characterized by greater volatility, uncertainty, complexity, and ambiguity, requires additional planning capabilities that can respond to fluctuations in demand in real time. This is where demand-driven MRP (DDMRP) comes into play.
Because DDMRP is driven by demand analysis, it is by definition more sensitive and responsive to fluctuations in demand and supply that can lead to shortages, production stoppages, and chaos on the production floor.
How sedApta's DDMRP Works: The Six Operational Levers
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Strategic buffer positioning: Decoupling points are identified within the product structure and along the supply chain, based on lead time, demand variability, and risk profile. Not a buffer everywhere, but only where it's really needed.
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Dynamic buffer sizing: Buffer levels are not fixed. They adapt to seasonal changes, demand trends, and scheduled events without requiring ongoing manual intervention by the planner.
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Net flow calculation: The algorithm calculates the net flow position in real time by combining available inventory, incoming orders, and qualified demand. This is the signal that determines whether and how much to order.
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Pull replenishment: Supply orders are generated by actual demand, not by projected forecasts. The system places an order when the buffer falls below the threshold, not because the schedule calls for it.
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Execution visibility: Clear priorities for each open order, based on buffer levels rather than delivery dates. Those carrying out the work always know what to focus on, without having to interpret ambiguous signals.
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ERP integration: sedApta’s DDMRP integrates into the company’s existing information flows—whether ERP, MES, or other planning systems—without requiring a replacement of the existing infrastructure.
From buffer to business impact: the numbers matter
Supply chain managers don't need yet another theoretical solution. He needs to know what actually changes when he stops chasing forecasts and starts working with real signals. These are the results that manufacturing companies achieve after adopting a structured DDMRP approach.
–25% off
Less tied-up inventory, more available working capital. Buffers placed at the right decoupling points protect the flow without overfilling the warehouses.
+10% service level
More on-time deliveries, fewer backorders. When the plan addresses the actual need, the fulfillment rate rises steadily.
–30% lead time
Fewer interdependencies between phases and suppliers, shorter response times. Urgent orders become the exception, not the rule.
+15% planner efficiency
Reorder signals are automatic and prioritized. Planners focus on the decisions that matter; they don't just chase after urgent tasks.
DDMRP at a Glance
The DDMRP consists of three sequential elements:
- Strategic Decoupling: This involves identifying decoupling points at strategic locations within the supply chain, taking into account both the internal structure of each product and the entire supply chain. The ability to decouple inventory allows subsequent production stages to operate independently in the event of slowdowns or interruptions. This makes it possible to curb variability both upstream and downstream, reduce lead times, and make the planning horizon more independent and shorter—a horizon that is typically based on medium- to long-term time frames. This is not permitted under traditional MRP logic.
- Buffer Profiles and Levels: This step involves creating buffer levels to absorb shocks at decoupling points and helps reduce variability. Buffer levels are determined using a unique combination of information that includes forecasts, historical data, and data derived from the demand-driven methodology.
- Dynamic buffer adjustment: After setting the initial strategic buffer levels, the DDMRP approach allows you to maintain buffer levels by adjusting them in response to internal and external changes. It is this ability to continuously adapt that distinguishes demand-driven MRP from traditional MRP: buffers are not fixed parameters, but respond to actual market changes.
Demand-driven planning
This is the ability to generate purchase orders using a proprietary algorithm that is simple yet effective. Thanks to the framework established in the previous sections, the algorithm allows for the placement of purchase orders using only sales orders associated with a short-term time horizon. Compared to traditional demand-driven planning, this approach reduces reliance on long-term forecasts and shifts the focus of decision-making to actual consumption signals.
Visible and collaborative execution
When we talk about "execution," we are referring to the management of open purchase orders or those that need to be fulfilled in the near future. By using clear and precise signals, it is possible to identify the priorities that require attention. The lower the strategic buffer level, the higher the priority assigned. This represents a radical shift from MRP logic, as it moves from prioritizing based on delivery dates (processing the most urgent products first) to prioritizing based on buffer levels (processing products associated with critical buffers first).
Benefits
Implementing a DDMRP methodology yields the following benefits:
Increased flexibility and responsiveness to the market
Improved Service Level
Reduction in total inventory, thanks to the elimination of unnecessary inventory generated by traditional MRP planning
Reduction in overall order management costs
Therefore, being able to adopt these technologies ahead of the competition provides a competitive advantage in terms of operational excellence in planning, production, and the supply chain.
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About Sales & Operations Planning
Creating Value Through Production Planning
In demand-driven markets, optimized Sales, & , and Operations Planning is key to achieving business goals and staying competitive. With the right process and the right technology, planning becomes a driver of growth and value.