Question
How can I generate purchasing demand for components based on usage or history in Microsoft Dynamics 365 Business Central planning?
Component Demand Planning in Business Central
Microsoft Dynamics 365 Business Central natively forecasts demand primarily at the finished goods level using sales history. Demand signals for components are generally derived indirectly through production orders exploding the finished goods demand. The Enhanced Planning Pack includes the Item Planning Review tool, enabling direct calculation of component demand based on historical usage and consumption data. This tool does not perform forecasting but calculates average usage, which can then update planning parameters for components.
How Component Demand Is Calculated and Managed
Microsoft Dynamics 365 Business Central’s standard planning and forecasting process primarily targets finished goods sales demand. Demand for components translates indirectly through BOM explosion for planned production quantities. This method suits conventional manufacturing and distribution but does not support direct forecasting at the component level. Component forecasting is inherently complex because consumption depends on usage, which can fluctuate due to production variations and scrap.
Components are not easily forecasted through sales-level demand alone, necessitating alternative planning approaches. The Item Planning Review tool within the Enhanced Planning Pack fills this gap by leveraging historical usage data instead of relying solely on forecasting. It enables planners to define usage through sales, assembly consumption, negative adjustments, or other transactional activity. With this usage information, planners can determine reorder points, safety stock, and inventory levels using flexible, customizable formulas.
These calculated parameters then inform purchasing decisions and Material Requirements Planning (MRP) for components. This approach extends Business Central’s native capabilities by delivering a usage-based, data-driven process for planning components. It effectively addresses situations where finished goods sales forecasts alone do not meet material planning requirements. This ensures that purchasing decisions are aligned with actual consumption patterns rather than indirect demand signals.
If component usage history is incomplete or missing, the calculated demand may be inaccurate or unavailable. Components not linked to production or lacking transaction data will not have calculated usage in the Item Planning Review. In such cases, native Business Central relies solely on finished goods demand explode logic, which may not reflect real consumption variability accurately.
Planning Tools Related to Component Demand Generation
The Item Planning Review tool enables calculation of component demand based on historical usage, supporting flexible inclusion of various transaction types and updating planning parameters accordingly. It supplements standard forecasting by focusing on usage-driven demand rather than predictive sales forecasts. The Enhanced Forecasting Worksheet focuses on finished goods sales forecasts and updates the demand forecast table used by Business Central.
The Enhanced Planning Worksheet consolidates purchasing plans and uses updated parameters to generate purchase recommendations, incorporating component-level planning data derived from tools like Item Planning Review.