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Charge

Also: Chargennummer, Los, Produktionslos, Lieferlos, Batch, Lot, Charge (Logistik), Chargen

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In brief

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.

Key facts

What is a batch?

A batch refers to a defined production quantity manufactured or processed at a specific point in time under identical conditions. Each batch is assigned a unique batch number, which is used to fully document all information relating to production, quality inspection, raw material origin, and processing. In regulated industries such as food, pharmaceuticals, or chemicals, batch management is required by law; in other sectors, it is considered best practice for robust quality assurance.

How does batch management work in practice?

Batch recording typically begins at goods receipt or in production. At goods receipt, the supplier's batch number is adopted or an internal number is assigned and linked to the goods receipt document. In the enterprise resource planning or warehouse management system (ERP or WMS), the batch is managed as its own inventory level below the article and storage location. This means that for every storage location and every movement — putaway, transfer, picking, shipping — a record is kept of which batch was moved.

Batches are often combined with additional attributes:

  • Best before date (BBD): Enables management according to the FEFO principle (First Expired, First Out).
  • Block status: Batches can be blocked in the event of quality issues, preventing them from being picked or shipped.
  • Inspection status: Batches not yet released are managed in the system as blocked or in quarantine.
  • Serial numbers: For individual high-value units, a batch can be combined with serial numbers.

During shipping, the batch number is included on delivery notes, labels, and electronic delivery data (ASN) so that the recipient can continue traceability seamlessly.

What matters when selecting and configuring batch management?

The greatest operational challenge is avoiding batch mixing. If products from different batches are uncontrollably merged in the warehouse, clean traceability is no longer possible. Many WMS systems therefore enforce batch-pure storage at the storage location level. Whether this makes sense for your operation depends on product characteristics, space requirements, and regulatory requirements.

Another critical point is response speed in the event of a recall: the system must be able to identify all affected stock, open orders, and already-shipped deliveries for a batch within a short time. This requires complete movement histories and seamless system integration between ERP, WMS, and, where applicable, TMS. Depending on the vendor, systems vary considerably in how granular and performant these traceability reports can be retrieved.

Frequently asked questions

A batch identifies an entire production quantity manufactured under identical conditions. A serial number, by contrast, uniquely identifies a single unit. Both can be combined — for example, when each unit within a batch is additionally assigned its own serial number.

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