Lost in Transit: The Merchant SOP When a Parcel Stops Scanning

A package is lost in transit when the carrier accepted it, stopped recording scans, and can no longer say where it is. For a merchant, lost in transit is the point where you stop treating an order as late and start replacing it, claiming it and telling the shopper. This page covers when to make that call, how to file the claim, who carries the cost, and whether to reship or refund. For tracking exception codes, start with my guide on what a delivery exception means. This page picks up after the scans go quiet.

Every order is a promise. Keeyu keeps it.

I'm Jevon Le Roux, co-founder and CEO of Keeyu. We build proactive e-commerce operations software, a different category from a helpdesk. The job is to get shoppers what they want, on time, as promised. A silent parcel is the clearest test of that job, because the shopper notices the silence long before the carrier does.

When does a carrier treat a package as lost in transit, and how long must you wait?

A carrier treats a package as lost once its own waiting period has passed with no delivery and no trace. That period is anchored to a date the carrier chooses: mailing date, shipment date or scheduled delivery date. Until then, the parcel is officially just late.

My view is that you should set a threshold for how long a parcel sits without a scan rather than waiting for a complaint. The carrier's clock decides when you can claim. Your clock decides when you act. Most merchants only run the first one.

What the three big US carriers publish

USPS publishes its windows directly. On its claims page, a lost Priority Mail Express package can be claimed after 7 days. Priority Mail, USPS Ground Advantage and insured mail can be claimed after 15 days. Every one of those claims is due no later than 60 days from the mailing date. Before that, USPS lets you submit a Missing Mail search request starting 7 days from mailing.

For UPS and FedEx, I'm relying on a secondary summary. As reported by Pango, UPS takes lost-package claims within 60 days of the scheduled delivery date. Pango also reports that FedEx takes claims for undelivered or lost shipments within nine months of the shipment date. Check the carrier's own page for your service before you rely on either number.

Your own no-scan clock

I set the clock somewhere between two and five days without a scan. Five days is where I'd start, and two or three is where you land if you want to move faster. One brand recorded seven days between scans on a stuck parcel, which is several days past the point a shopper has already decided you lost it.

What I look for is simple: an order that hasn't moved between two stages of the network for a set amount of time. Not a late delivery date. A gap between scan points.

• Two to five days with no scan between stages: start the SOP.
• No scan updates at all after pickup: start the SOP.
• Any parcel the carrier flags as lost: start the SOP the same day.

The parcel that was never lost

One pattern looks like loss and isn't. A label is created and the parcel never moves. The warehouse marks the order fulfilled and the shopper gets a dispatch email, but the carrier never picks it up or records the first scan. That is a warehouse or handover problem, and a carrier claim will go nowhere. Call your 3PL before you call the carrier.

How to file a lost package claim with UPS, FedEx or USPS

A lost package claim is a formal request asking the carrier to pay the declared or insured value of a shipment it failed to deliver. In most cases the merchant, as the shipper, files it.

My take: run the claim as a parallel track, not as the thing that decides what the shopper gets. The claim recovers money for you. It should never gate the shopper's replacement, because the carrier's timeline and the shopper's patience run on completely different scales.

Step 1: Gather the paperwork before you start

USPS asks for the original mailing receipt, proof of insurance and proof of value on its claims page. It accepts a sales receipt, paid invoice or credit card billing statement as proof of value. Build the file once per order:

• Tracking number, plus the last scan location and time.
• Invoice or order record showing what was in the box and its value.
• Proof of any declared value or insurance you bought.
• Shipping label record and the ship date.

Step 2: File in the carrier's portal

• USPS: start from the USPS claims page. Either the sender or the recipient can file on insured mail, so agree internally that the merchant files.
• UPS: file through UPS claims support.
• FedEx: file through FedEx claims.

If you bought third-party shipping protection, the payout comes from that provider, not the carrier. I cover whether that cost pays for itself in is shipping protection worth it, so I won't repeat the math here.

Step 3: Log the case so a found parcel comes home

The step merchants skip is logging the lost case formally with the carrier. If the original turns up, it goes back to you rather than landing on the shopper's doorstep after the replacement.

Step 4: Track the decision and the appeal window

USPS says approved claims pay in 7 to 10 business days and it never pays more than an item's actual value. A denied or partly paid claim can be appealed within 30 days of the decision. Put those dates in the case record the day you file.

Lost in transit SOP: who absorbs the loss, and when to reship versus refund

A lost-in-transit SOP is the written rule set that decides, for every silent parcel, who pays, what the shopper receives and how fast. The shopper should never be the person who absorbs the loss.

My view is blunt. The shopper's version of a lost parcel should be that you told them first and the replacement was already coming. Everything in the SOP below exists to make that sentence true. The carrier claim recovers what it can afterward.

Every order is a promise. Keeyu keeps it.

Who absorbs the financial loss

As reported by Forest Leopard, risk transfers when custody transfers. In its summary, the shipper is responsible before carrier pickup, the carrier is liable during carriage within strict limits, and the buyer is responsible after delivery confirmation. That is general information, not legal advice; your sales terms and carrier contract set the specifics. In practice, for a direct-to-consumer order, I'd front the replacement and recover the cost afterward.

Reship or refund: the decision rule

I start by checking whether the stock exists. If it does, reship. If it doesn't, refund. The sequence is finding the stock, placing an order, putting it onto express so the shopper gets it next day, shipping it out, and sending a notification.

• Stock on hand: create a replacement order at no value, ship it express and cancel the original. Tag both "lost in transit" so finance can match the claim.
• Stock elsewhere, such as another warehouse: allocate it from there and ship express.
• No stock: refund in full and say so in the message.

If refunds are a big part of your volume, see our roundup of refund management tools for how other merchants handle them.

Protecting margin without punishing the shopper

Margin protection comes from recovering the cost, not from making the shopper wait for the carrier's verdict.

• Recover cost through the claim, declared value or protection, never through delay.
• Keep the tags and case records tidy, so every reship maps to a claim.
• Watch for orders that were really wrong shipping addresses rather than carrier loss, since those need a different fix.

What to tell the shopper when a package is lost in transit

A lost-parcel message is the note a merchant sends to tell a shopper their order stopped moving and what is being done about it. It should arrive before the shopper writes in.

I believe the apology matters as much as the replacement. Send the sorry note and a small coupon even though the shopper hasn't emailed you, simply because you feel bad for them. That is the tone: you noticed first, you've fixed it, and nobody is asking them to do anything.

For full delay templates across every scenario, use our delivery delay email examples. Here is the short lost-parcel version I'd start from:

• Subject: Your order is on its way again
• Body: "Hi [first name], your parcel stopped updating with [carrier] on [date], so we've already sent a replacement by express. New tracking: [link]. You don't need to do anything. If the first box turns up, just let us know. Sorry for the wait. Here's [offer] for your next order."

What to leave out

• Blame. Don't name the carrier as the culprit; describe what happened and what you did.
• Legal conclusions. Say the parcel "stopped updating," not that anyone is liable, until the claim settles.
• Tasks for the shopper. Asking them to file a claim or wait on a carrier search adds friction you can avoid.

Turning the message into a workflow

The message works only if it fires on your no-scan threshold, not on the shopper's complaint. That is the difference between proactive and reactive customer service, and the foundation of proactive e-commerce operations. To see how we run that loop end to end, book a Keeyu demo.

Every order is a promise. Keeyu keeps it.

Frequently asked questions

How many days until a package is considered lost in transit?

It depends on the carrier and the date it counts from. USPS lets you claim a lost Priority Mail Express package after 7 days and most other insured services after 15 days from mailing. As reported by Pango, UPS counts from the scheduled delivery date and FedEx from the shipment date. Set your own action threshold well before either.

Who is responsible for a package lost in transit?

As reported by Forest Leopard, risk generally follows custody: the shipper before pickup, the carrier during carriage within its liability limits, and the buyer after confirmed delivery. This is general information, not legal advice. For a direct-to-consumer order, I'd front the replacement and recover the cost from the carrier claim, insurance or a protection provider.

Should I reship or refund a lost package?

Reship when the stock exists, ideally by express, and refund when it doesn't. Create the replacement at no value and tag both orders so finance can match the claim later. Log the lost case with the carrier so a found parcel returns to you. Our refund management tools roundup covers the refund side.

Can the shopper file the claim instead of the merchant?

USPS allows either the sender or the recipient to file on insured mail, and FedEx lets recipients file or ask the merchant to, as reported by Pango. In practice the merchant should file, because it holds the invoice, the label record and the proof of value, and the shopper shouldn't have to do paperwork.

What if tracking never updated after the label was created?

That usually isn't a lost parcel. A label with no first scan typically means the carrier has the data but never received the goods, which points to a warehouse or handover problem. Check with your 3PL or fulfillment team before filing a carrier claim on a parcel the carrier may never have accepted.

Is shipping protection worth it for lost packages?

It depends on your loss rate, average order value and how much margin you can spare for replacements. Protection changes who pays you back, not what the shopper should experience. I break down how it works in shipping protection explained, and the cost question in is shipping protection worth it.

What should I say to a customer whose package is lost?

Tell them first, before they ask. Say the parcel stopped updating, that a replacement is already on its way with new tracking, and that they don't need to do anything. Skip blame and legal language. For longer templates covering other delay scenarios, use our delivery delay email examples.

• 1. USPS, "File a Claim", https://www.usps.com/help/claims.htm. Lost-package claim windows by service (7 or 15 days after, 60 days before, from mailing), required proof, 7 to 10 business day payment, 30-day appeal window, either sender or recipient may file on insured mail.
• 2. USPS, "Missing Mail and Lost Packages", https://www.usps.com/help/missing-mail.htm. Missing Mail search requests can be submitted starting 7 days from mailing.
• 3. Pango, "Parcel Lost in Transit: When to Claim and Who Claims", https://pango.ai/resources/parcel-lost-in-transit. As reported: UPS claims within 60 days of scheduled delivery, FedEx claims within nine months of shipment date, FedEx recipients may file or ask the merchant.
• 4. Forest Leopard, "What Happens When a Shipment Is Lost in Transit? Who Is Responsible & Who Pays", https://forestleopard.com/knowledgedetail/shipment-lost-in-transit-responsibility. As reported, general information only: risk transfers with custody (shipper before pickup, carrier within strict limits during carriage, buyer after delivery confirmation).
• 5. UPS, "File a Claim", https://www.ups.com/us/en/support/file-a-claim. Where to file a UPS claim.
• 6. FedEx, "Claims", https://www.fedex.com/en-us/customer-support/claims.html. Where to file a FedEx claim.