Reservierung
Also: Bestandsreservierung, Reservierungen, Lagerreservierung, Auftragsreservierung, Materialreservierung, Bestandsblockierung
AI-generated
Reservation refers to the system-side blocking of inventory for a defined purpose, such as a customer order or production order. Reserved stock is considered unavailable and is not counted as open stock in materials planning.
Key facts
- Reserved stock is allocated by the system to a specific demand and is unavailable for other orders.
- Reservations can be made at the item, batch, serial number, or storage location level – the available levels depend on the WMS or ERP system in use.
- A logical reservation in the system and a physical block on a storage position are two distinct concepts that can be applied independently of each other.
- Unresolved or outdated reservations create phantom shortages and distort the inventory overview.
- The timing of a reservation directly influences the balance between delivery reliability and planning flexibility.
What is a reservation in the warehouse?
A reservation is a system logic in WMS and ERP systems that exclusively allocates a defined quantity of stock to a specific demand. The stock remains physically in the same location, but is no longer available for other orders or planning processes. The distinction between reserved and available stock is therefore purely informational – the system prevents double allocation, but not physical access.
Reservations can be made at various levels of granularity: at the item level, at the batch or serial number level, or tied directly to a specific storage location. Which levels are available depends on the system in use and is not standardized.
How does reservation work in practice?
Typical triggers for a reservation include:
- Customer orders, where available stock is reserved immediately or on a time-controlled basis
- Production orders that tie up raw materials or semi-finished goods
- Quality holds and quarantine processes, where goods are blocked until released
- Internal stock transfers or inventory count processes
For order reservations, a common distinction is made as to whether the reservation occurs at the time of order creation, upon order release, or shortly before picking. Early reservations increase delivery reliability, but can limit flexibility in stock utilization – particularly when many orders are open simultaneously.
It is important to distinguish between a logical reservation and a physical block: a block prevents actual access to the goods, for example by restricting access to a storage location or applying a corresponding flag to the container. Both can be used in combination, but are conceptually distinct.
What matters when selecting and configuring reservation logic?
When setting up reservation logic, the following aspects should be considered:
- Reservation timing: The earlier the reservation, the more reliable the planning – but the lower the flexibility for rescheduling.
- Granularity: Batch- or serial-number-level reservations are more complex to maintain, but are often necessary for goods subject to traceability requirements.
- System integration: WMS and ERP must exchange reservation statuses consistently, otherwise posting discrepancies will arise.
- Release and cancellation processes: Reservations that are no longer needed must be actively reversed – otherwise phantom shortages will appear in the inventory.
How reservations are technically mapped and which priority rules are applied when conflicts arise between multiple reservations is vendor-dependent and should be clearly defined in the requirements specification.
Related terms
- Auftragsabwicklung
Order fulfillment refers to the complete process from receiving a customer order through to its successful delivery and invoicing. It encompasses all operational and administrative steps required to fulfill an order on time and without errors.
- Auftragsmanagement
Order management refers to the systematic control and monitoring of orders throughout their entire lifecycle – from capture through prioritization and status tracking to completion. It forms the operational link between sales, logistics, purchasing, and IT.
- Bedarfsplanung
Demand planning refers to the systematic process by which a company determines what quantities of materials, goods, or resources are needed and when. It forms the foundation for inventory management, procurement, and warehouse planning.
- Bestand in der Logistik
In logistics, inventory refers to the quantity of goods physically present or recorded in accounting at a specific point in time – including raw materials, semi-finished goods, and finished products. It is a key control variable because it ties up capital while simultaneously ensuring the ability to deliver.
- Bestandscontrolling
Inventory controlling refers to the systematic monitoring, analysis, and management of stock levels using defined key performance indicators. It connects logistics and procurement to reduce tied-up capital and ensure delivery capability.
- Bestandsführung
Inventory management refers to the system-supported administration and continuous updating of all warehouse and material stocks within a company. It forms the basis for planning, procurement and accounting – and ensures that the book inventory and physical inventory are in agreement at all times.
- Bestandsmanagement
Inventory management refers to the systematic planning, control, and monitoring of stock levels across the entire supply chain. The goal is to ensure delivery capability while keeping capital commitment and warehousing costs within economically viable limits.
- Charge
A batch is a uniquely identifiable quantity of products manufactured or processed under identical conditions. It forms the basis for traceability, quality control, and legally required recall processes throughout the entire supply chain.
- Chargenrückverfolgung
Batch traceability refers to the complete and uninterrupted trackability of products and materials along the supply chain based on their batch assignment. It enables companies to quickly identify and selectively block all affected quantities in the event of a quality issue or recall.
- Disposition
Disposition refers to the operational planning and control of resources, quantities, and orders in logistics – for example in transport or materials disposition. It encompasses capacity assignment, scheduling, prioritization, and response to disruptions.