Material requirements and purchasing planning connect BOM-driven needs with current inventory, purchasing, supplier lead times and the production schedule. Material requirements should be calculated from BOM by production quantity. Unavailable items should become visible to purchasing early. Delbig treats production, inventory and purchasing plan as one operations chain. Materials needed for production are broader than current stock. BOM, production quantity, reservations, open purchase orders and supplier lead times should be evaluated together. If shortage information reaches purchasing late, the production plan breaks. Requirement planning, supplier order and warehouse receiving should be tracked in the same production context. Depending on workflow, missing materials can move into purchasing planning; the key is keeping the production need and supplier record connected. No. Reservations, open orders and quality status may affect availability.
Missing materials should be visible before production starts
Requirements planning is more than stock quantity
Purchasing should not detach from production
Frequently asked questions
Does MRP create purchase orders?
Is material shown in stock always available?
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