Blocked Stock
Is blocked stock the same as quality inspection stock?
No. Blocked stock means the material is not releasable for normal use; quality inspection stock is typically used when the material is under inspection but still managed as inventory in the system, whereas GR blocked stock is a non-valuated conditional receipt recorded in PO history.
What movement types are most associated with GR blocked stock?
103 posts the receipt into GR blocked stock, 105 releases it to own stock, and 104/124 are used for reversals or returns depending on the process context.
Why does GR blocked stock not appear as regular inventory value?
Because it is not valuated and is not counted as inventory until the acceptance condition is met and it is released into stock.
Blocked stock is inventory that is on hand but not available for normal use or issue until a release action is taken. In SAP, it is a separate stock status, generally valuated and tied to storage location or plant-level stock logic depending on configuration. GR blocked stock is different: a conditionally accepted goods receipt that is not valuated, not part of regular inventory, and tracked only in purchase order history until released or returned.
On a shop floor, blocked stock appears when material arrives physically but cannot be consumed due to quality failure, documentation gaps, damaged packaging, engineering review, or a receiving/QA hold. It remains visible in stock records but is excluded from normal issue to production or sales until disposition. In receiving, warehouses post incoming lots to GR blocked stock using movement type 103 when acceptance is conditional (missing certificates, disputed quantity, or inspection before final GR). Once approved, 105 releases it to regular stock, or 104/124 reverses/returns it. Blocked stock prevents nonconforming material from entering MRP-supported consumption, but planners see the quantity as present yet unavailable, so it cannot cover shortages unless formally released. Operationally, it is monitored via MMBE, MB52, and material documents; GR blocked stock is derived from 103 receipts not yet released with 105 or returned with 104.
Stockout masking: Warehouses count GR blocked material as on site even though it cannot be issued, so production schedules assume coverage that does not exist. This creates line stoppage when the blocked lot is the only apparent supply.
Receiving bottleneck: If conditional receipts accumulate faster than QA can inspect or accounting can clear, blocked stock builds up and ties up dock space, staging lanes, and forklift time, causing congested inbound flow and delayed release actions.
Mis-posting/wrong movement type: Teams sometimes use blocked stock when quality inspection stock is needed, or they post 103/105/104 incorrectly. This causes inventory valuation mismatches, PO history errors, and confusion over whether material is owned, usable, or pending acceptance.