How to Track Inbound Supplier Shipments Without Carrier-Site Tab Hopping

Every manufacturer has some version of the same ritual: a raw-material shipment is due any day, so someone opens a browser tab, digs through email for the tracking number, pastes it into the carrier's site, and repeats the whole thing tomorrow if it still says "in transit." Multiply that by a dozen open purchase orders and a handful of carriers, and tracking inbound shipments quietly becomes its own part-time job.

The Real Cost of Inbound Blindness

Outbound shipment tracking gets all the attention — customers expect a tracking link the moment their order ships, so most systems handle that well. Inbound tracking, the shipments coming to a manufacturer rather than going out, tends to get ignored, even though it matters just as much for keeping production moving.

When you don't know where an inbound shipment actually is, a few predictable things happen:

• Production scheduling runs on guesswork. A production run gets scheduled assuming a raw-material lot will be on the shelf by a certain date, because that's what the supplier promised — not because anyone confirmed it's actually moving.
• A delayed shipment surfaces too late. By the time someone notices a package has been sitting at a carrier facility for three days, there's no time left to expedite, substitute, or push the run back gracefully.
• Tracking becomes a manual chore split across tools. One tracking number lives in a supplier email, another in a text message, a third scrawled on the PO itself — none of it next to the purchase order it belongs to.
• Receiving is caught off guard. Without a clear signal that a shipment is out for delivery, receiving staff can't plan for it, and a delivery sits unlogged for longer than it should.

None of this is a failure of effort. It's a failure of the tracking data living in the wrong place — scattered across carrier websites and inboxes instead of attached to the purchase order that actually needs it.

What Good Inbound Tracking Looks Like

A genuinely useful inbound tracking setup does a few specific things well:

• Lives next to the purchase order, not in a separate tab or app, so anyone looking at a PO can see shipment status without leaving the page.
• Shows real carrier stages, not just "shipped" or "not shipped" — the difference between "carrier accepted" and "out for delivery" is the difference between planning ahead and scrambling.
• Handles split shipments. Purchase orders don't always arrive in one box. A single PO might ship as two or three separate packages, and a tracker that only shows one status for the whole order hides exactly the information you need when only part of an order has landed.
• Surfaces delays as an actual state, not silence. If a shipment hits an exception — a failed delivery attempt, an unexpected delay — that needs to be visible immediately, not discovered by refreshing a carrier site out of habit.
• Works even when a supplier doesn't use a trackable carrier. Plenty of smaller suppliers ship via a regional courier or their own delivery van with no tracking number at all. A tracking setup that only works for major carriers leaves those purchase orders permanently blind.

How Nstock's PO Tracker Works

Every purchase order in Nstock now has a live, animated shipment tracker built directly into the PO view. Adding a tracking number and carrier to a PO takes seconds, and from there the tracker runs on its own.

One progress bar per shipment. If a purchase order arrives as multiple boxes or split shipments, each one gets its own bar, so you can see at a glance that two of three packages have arrived and one is still in transit — instead of one blended status that hides the difference.

Clear stages, start to finish. Each shipment moves through Label Created, Carrier Accepted, In Transit, Out for Delivery, and Delivered, with a distinct exception state if something goes wrong — a delay or a failed delivery attempt shows up as its own status rather than getting buried in "in transit."

Expandable checkpoint history. Click into a shipment and see every carrier scan — location and time — along with the carrier's own estimated delivery date, so you're not guessing whether "in transit" means one day out or one week out.

Refresh on demand or automatically. A refresh button lets you re-check status any time you want a current read, and statuses also refresh automatically whenever the purchase order is opened, so the tracker stays current without anyone having to remember to check it.

USPS tracking is live today, pulling directly from USPS's official tracking service, with more carriers on the way. For suppliers that ship via a carrier Nstock doesn't yet track automatically, or a courier with no trackable service at all, a manual status option still shows the same tracker bar, so every purchase order gets a consistent view regardless of how it ships.

The tracker is included on Nstock's Business plan — see pricing for what's included at each tier, or the full features list for everything else that ships alongside it.

Tying Inbound Tracking to Receiving and Production

A tracking number by itself is just data. What makes it useful is sitting next to the decisions that depend on it. Because Nstock's shipment tracker lives on the purchase order itself, it connects directly to the workflows that already revolve around that PO:

• Receiving knows what's actually coming, and when, instead of finding out a delivery happened after the fact. A shipment moving into "Out for Delivery" is a much better planning signal than an email that went unread.
• Production scheduling gets a real date, not a promised one. A supplier's original lead time is a starting estimate; live tracking status is what's actually happening. If a lot is running behind, that shows up in the tracker before it shows up as an idle production line.
• Open commitments stay visible alongside shipment status. Nstock's Open Purchase Commitments report already tracks the dollar value of pending POs — pairing that with shipment status means you can see both what's committed and how close it actually is to landing.
• A delayed lot doesn't have to be a surprise. Catching a carrier exception two days into transit gives you time to check in with the supplier, look at substitute material, or adjust the schedule — options that don't exist if the first sign of trouble is an empty shelf on the day production was supposed to start.

For manufacturers who've already tightened up the supplier side of the process — see how to vet a new supplier and sending purchase orders from your own domain — shipment tracking closes the remaining gap: what happens after the PO goes out and before the material shows up.

Frequently Asked Questions

Which carriers does Nstock track automatically?

USPS tracking is live now, pulled directly from USPS's official tracking service, with more carriers on the way. For suppliers shipping via a carrier that isn't tracked automatically yet, or a courier with no trackable service, Nstock's manual status option still shows the same tracker bar on the purchase order.

How do I add tracking to a purchase order?

Add a tracking number and carrier to any PO in Nstock in seconds. From there, the tracker takes over — no separate tool or carrier login required.

Does the tracker update automatically, or do I have to check it manually?

Both. Shipment status refreshes automatically whenever the purchase order is opened, and a refresh button is available any time you want to re-check status on demand.

What happens if a purchase order ships in multiple boxes?

Each shipment gets its own progress bar on the same purchase order, so a split shipment shows exactly which boxes have arrived and which are still in transit, instead of one combined status for the whole order.

What if a shipment is delayed or a delivery attempt fails?

Nstock's tracker shows a distinct exception state for delays and failed delivery attempts, so a shipment running into trouble is visible immediately rather than sitting quietly in "in transit."

Live shipment tracking is available now on every purchase order for accounts on Nstock's Business plan. See what else shipped recently on What's New, or explore the full features list to see how it fits with the rest of Nstock's purchasing and production tools.

— Kyle Moloney, Procurement & Operations