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Home / Glossary / ASN

Warehousing

ASN

Advance Shipping Notice — electronic heads-up of a delivery.

Definition

An ASN (advance shipping notice) tells a warehouse what is arriving before the truck does — SKUs, quantities, cartons and references. It speeds receiving and reduces miscounts versus blind receipts.

Worked example

Your supplier or freight forwarder sends an ASN for PO-1042: 20 cartons, three SKUs. The 3PL pre-creates the goods-in and books a bay before arrival.

Why it matters for replenishment

Without ASNs, receiving lead time stretches and sellable stock appears later than your reorder maths assumed.

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Related terms

Common questions

Who sends the ASN?

Supplier, forwarder or you — whoever the warehouse trusts as the shipper of record.

Is an Amazon shipment ID an ASN?

It plays a similar role for FBA inbounds inside Amazon’s tools.

ASN vs invoice?

ASN is about logistics contents; the invoice is commercial.

Is an ASN the same everywhere?

The idea is shared, but formulas and marketplace rules differ. Use the definition on this page for ecommerce replenishment.

Do I need software to track an ASN?

A spreadsheet works for a few SKUs. Once you have many suppliers or channels, a replenishment tool keeps the numbers current.

Does OmniRestock change my live stock?

Not unless you switch Stock write or Purchase orders on for a connection. Drafts stay drafts until you confirm.

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