SollBedarf

SollBedarf, often written Sollbedarf, is a term used in manufacturing, logistics and enterprise resource planning to denote the planned or target quantity of materials, components or items required to meet upcoming production or demand. It represents the quantity that should be procured or produced to satisfy the scheduled orders, as opposed to actual consumption or current stock levels.

The calculation of SollBedarf typically relies on the bill of materials (BOM), the production plan or demand forecast, and lead times. By translating the planned production into component requirements through the BOM, and adjusting for timing and availability, a company derives the expected material needs. Existing inventory and in-transit items are considered to determine net requirements, which are the quantities that still need to be acquired or manufactured.

SollBedarf is used to trigger procurement and manufacturing activities. It informs purchase requisitions, order quantities, and replenishment planning, and is often contrasted with Istbedarf (actual requirements) or Istbestand (actual stock). In many ERP systems, including SAP, SollBedarf feeds the material requirements planning process to synchronize purchasing, production scheduling and inventory control with the business plan.

Variations of SollBedarf may include time-based horizons (e.g., weekly SollBedarf), safety stock adjustments, and lot-size considerations. The concept helps organizations plan efficiently, reduce stockouts and optimize lead times, while aligning material flow with production objectives. A precise SollBedarf supports cost control and service level targets by providing a clear signal of what must be available to fulfill planned output.