In this guide 6 sections
An advance shipping notice is an electronic message sent to the customer before a truck arrives, listing part numbers, quantities, lots and packing details. A supplier creates one from its own dispatch records, so the plant needs those fields captured at packing, not typed again at night.
What the notice actually says
An ASN is a short digital packing list that reaches the OEM before your vehicle does. The receiving dock uses it to plan unloading and to match arrivals against promises.
Typical content is the schedule number, the part number and revision, quantity per pack, number of packs, lot or batch, invoice number and vehicle. Many portals also expect a label identifier for each pack.
If the ASN says one thing and the truck carries another, the dock holds the load. Accuracy beats speed.
- Schedule or purchase order number
- Part number and drawing revision
- Quantity per bin and number of bins
- Lot or heat number
- Invoice, vehicle and driver details
Where the data comes from in your plant
Each field on the ASN already exists somewhere in your plant. The part number sits on the job card. The lot comes from the machine shop or the heat treatment batch. The quantity is counted at final inspection and again at packing.
The trouble is that these live in different notebooks, sheets and a billing package. Whoever prepares the ASN in the evening walks between them with a pen, copying lot numbers from the heat treatment register and counts from the packing slip. It is slow work.
Map every ASN field to the place where it is first known. That map shows which step must record it. It also names the person who owns it.
The schedule and quality feeds on OEM portals
Portals work in two directions. First, the OEM publishes a delivery schedule, often weekly with a firm and a forecast window, and it posts quality complaints against specific lots.
Your plant needs to read the schedule into planning, not copy it into a sheet. It also needs to link a complaint back to the lot, the operator and the inspection record that cleared it.
If the lot number on the ASN matches the lot in your production record, a complaint becomes a ten minute search instead of a day of digging through registers.
- Weekly delivery schedule with firm and forecast quantities
- Rejection and debit notes by lot
- Supplier rating or delivery score
- Label and barcode format required per customer
Capture it once at packing
The cleanest design asks the packer to scan or select the job, enter the final count and confirm the bin labels. That single step fills the lot, quantity and pack data for the ASN.
The invoice and ASN are then produced from the same record. The vehicle number is added at the gate. Nobody retypes anything in the evening. A mismatch between invoice and notice has nowhere to start. One record, one truth.
Pithampur and Mandideep plants often serve several OEMs, each with its own portal and label format. Keep one dispatch record and let each portal take its own view of it.
A check before you automate
Pick one customer and one week. Collect the ASNs you sent, the invoices and the dock receipts, then compare them field by field.
Note every mismatch, such as a wrong drawing revision or a bin count that differs from the dock receipt. Trace each to the step that caused it. You will usually find two or three fields missing at packing.
Fix those fields first. Automation then has clean inputs, and the portal upload becomes a button rather than a nightly chore that ends after the second shift has gone home.
ASN field source map
Grid on a single sheet, with each ASN field as a row. Four columns hold the field name, where the plant first knows it, who records it and the portal it must appear on. Rows cover schedule number, part and revision, quantity per bin, bin count, lot, invoice, vehicle and label ID. A blank column marks fields still typed by hand.
Open a blank worksheet to printQuestions owners ask
What does ASN stand for in supply chain?
It stands for advance shipping notice. It is a message from the supplier to the buyer, sent before the goods arrive, that describes the contents of the shipment.
Is an ASN the same as an invoice?
No. The ASN describes the physical shipment, including packs and lots, so the dock can receive it. The invoice is the commercial document used for payment.
Who sends the ASN, the plant or the transporter?
The supplier’s plant sends it, usually through the customer’s portal or an agreed electronic format. The transporter only carries the goods.
What if my customers each want a different format?
Keep one internal dispatch record with every field captured. Each portal then reads its own required subset, so you do not maintain separate sheets.