noun which may take the genitive case particle 'no', noun
Used for products, parts, or items that are temporarily unavailable. Often appears in business or retail contexts.
この商品は在庫切れです。
This item is out of stock.
在庫切れのため、注文をお受けできません。
We cannot accept orders because it is out of stock.
在庫切れ is the inventory-management term for stock being depleted, while 品切れ is the everyday word customers see in shops or online.
Compound of 在庫 (zaiko, 'inventory') and 切れ (gire, 'running out').