Inspection Lot
What triggers an inspection lot in SAP QM?
An inspection lot is created automatically by triggering events such as goods receipt postings, production order releases, or manually by a quality technician for stock already on hand.
What data is stored in the inspection lot?
Inspection lots store material, batch, quantity, origin, associated goods movement document when applicable, and inspection context such as task list type and usage decision details.
How does SAP determine what to inspect?
SAP selects inspection specifications from the material master setup, then assigns an inspection plan, routing, or master recipe based on material, lot size, and creation date.
An inspection lot is a quality management control object in SAP that serves as an order for quality inspection of a specific quantity of a location product. It is created automatically by triggering events such as goods receipt or production order release, or manually. The lot stores material, batch, quantity, and origin, links inspection specifications and plan, and remains in quality inspection stock until a usage decision is made.
On the shop floor or at the receiving dock, an inspection lot is the transaction-level record that gates inventory until quality verification is complete. When a goods receipt is posted against a purchase order, SAP can generate one inspection lot per receipt or combine receipts into a summarized lot. The system links the lot to the relevant inspection plan or routing, automatically determines sample size, and guides results recording for characteristics. While the lot is open, the quantity sits in quality inspection stock and cannot be consumed or shipped. Once inspectors record results, a usage decision releases the lot; a positive decision posts the quantity to unrestricted-use stock, making it available for production or warehousing. In environments with multiple deliveries of one batch, inspection lot grouping and material master settings preserve traceability and prevent duplication while keeping stock postings aligned.
Lot creation mismatch with GR quantity: If goods receipt and inspection lot summarization settings do not match the physical receipt pattern, the warehouse can end up with excess quality stock or uninspected quantity sitting in inspection status, delaying putaway and downstream picking.
Usage decision backlog: If quality engineers do not complete the usage decision, stock remains locked in quality inspection status and cannot move to production or customer fulfillment, creating a hidden inventory bottleneck even when material is physically on site.
Incorrect grouping by batch or location: If the material master or inspection lot summary settings are too coarse, multiple deliveries or storage-location-specific receipts can be merged into one lot, which can obscure batch-level defects and weaken traceability during containment or recall.