Stock Allocation
Stock allocation is the process of reserving inventory units against a specific order, project, or customer account before dispatch, removing them from available stock so they cannot be committed to another order.
Stock allocation is the process of reserving specific inventory units against a confirmed order, project, or customer account before physical dispatch. When stock is allocated, those units are treated as committed - they are no longer available to be sold or assigned elsewhere, even though they still sit in the warehouse. The allocation is released only when the items are dispatched or the order is cancelled or reduced.
Allocation sits between having stock and sending it. Without it, two separate orders can both show as fulfillable against the same physical inventory, and the shortfall only becomes apparent when picking begins.
Where Stock Allocation Matters in Practice
For businesses that hold client-dedicated or client-owned stock, allocation is the mechanism that prevents double-booking. A promotional merchandise distributor running a call-off order for a client expects specific units to be available when each call-off is triggered - allocation backs that expectation. An AV hire company reserving specific equipment for a confirmed event date faces the same problem: without allocation, the same kit can be committed to two jobs at once. Office furniture dealers reserving specific products for a confirmed project delivery date face exactly the same risk.
The same principle applies when one product is needed across multiple projects simultaneously. A joinery contractor receiving a bulk delivery of hardware that needs to be split across three live sites, or a renewables installer with a batch of inverters earmarked for different customers, relies on allocation to track which units belong where before any of them leave the warehouse.
Allocation vs. Available Stock
The distinction between allocated stock and available stock matters when making new sales commitments. Available stock is the quantity on hand minus what is already allocated. Quoting or promising delivery against total stock on hand - without accounting for allocation - is one of the most common ways businesses create fulfilment problems they cannot easily explain to the customer when the time comes.
Allocation feeds directly into pick list generation and links to delivery note creation. In Zigaflow's Inventory module, confirmed orders can be tracked against stock so that available quantity reflects only what is genuinely uncommitted.
Allocate at order confirmation, not at dispatch
The later you allocate stock in the process, the greater the risk of overselling or creating avoidable delays. Reserving inventory when an order is confirmed gives everyone in the business - sales, purchasing, and logistics - an accurate view of what is genuinely available.
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