What push and pull inventory mean
A push inventory system produces or orders stock ahead of demand, based on a forecast of what customers will likely want. Goods are "pushed" into the supply chain and onto shelves in anticipation of sales, rather than reacting to a specific order already placed.
A pull inventory system does the opposite: replenishment or production is triggered by actual demand, such as a confirmed customer order or a real drop in stock, rather than a forecast. Stock is "pulled" through the supply chain only once demand for it is confirmed.
The core tradeoff
Push systems can fulfill orders immediately from stock already on hand, since goods were produced or ordered in advance but they carry forecast risk. Overestimate demand and you end up with excess inventory; underestimate it and you stock out despite having planned ahead.
Pull systems minimize the risk of overstock since nothing is made or ordered until demand is confirmed, but they typically mean longer fulfillment time, since production or replenishment only starts after the demand signal arrives.
- Push: fast fulfillment from pre-built stock, but forecast risk (overstock or stockout)
- Pull: lower overstock risk, but slower fulfillment since stock isn't built ahead of demand
When each approach fits
Push suits products with stable, predictable demand staples, seasonal items with a well-understood pattern, or anything where customers expect immediate availability off the shelf. Pull suits highly customized products (made-to-order manufacturing), items with volatile or hard-to-predict demand, or expensive goods where holding speculative stock is too costly to justify.
Most businesses blend the two: predictable, fast-moving SKUs get pushed to stock ahead of time for quick fulfillment, while custom, high-variability, or high-cost items get pulled and produced or ordered only once a real order exists.
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