eBay says your tracking number is not valid: the causes and how to fix each one

Why does eBay say a tracking number is not valid?

When eBay says your tracking number is not valid, it is telling you it cannot match the number to the carrier you chose. eBay checks the number against the pattern that carrier uses and, once the order is saved, asks that carrier for scans. If either check fails, the number gives you little protection, even when the parcel is on its way.

The good news is that the cause is nearly always one of a short list. Work through them in order and most problems are fixed in minutes. The phrase is also used loosely by sellers to mean tracking that shows no information, which has its own set of causes covered below.

The common causes, and the fix for each

Wrong carrier: the most common reason

Many parcels pass through more than one company. A label might be bought through a postage platform, collected by one courier and delivered by another. eBay needs the company whose tracking system holds that number. If you choose the platform's name, or the carrier that only delivers the last mile, eBay asks the wrong system and finds nothing.

Look at the label itself. The logo next to the barcode and the format of the number usually show who owns it. If the number starts and ends with letters, or has a fixed length, the carrier's own website will confirm whether it is theirs. Once you know, edit the order in Seller Hub, change the carrier and save.

Why does tracking show no information yet?

A valid number can still show nothing for a while. Most carriers create a record when the label is made but do not show scans until the parcel is physically in their network. If you add tracking straight after printing the label, the buyer may see no movement until the evening collection or the next morning.

This is normal for a few hours. It becomes a problem when it lasts past a working day, because it usually means the parcel has not been handed over or the acceptance scan was missed. Ask for a receipt at the counter, or check that the collection driver scanned every parcel.

On eBay UK, a tracked item counts as late only if the delivery scan is after the latest estimated delivery date and there was no carrier scan within your dispatch time, as set out in the seller performance policy. A missed acceptance scan removes that protection, even if you posted on time.

What does valid tracking mean on eBay?

Valid tracking is tracking eBay can rely on as evidence. In plain terms it has four parts:

1. A real tracking number issued by the carrier for this parcel.
2. The carrier that holds that number selected on the order.
3. Scans eBay can read, ideally an acceptance scan and a delivery scan.
4. Delivery to the address on the order, matching the buyer's postcode or town.

When all four are present, eBay can see for itself when the parcel left and when it arrived. That is what you need when a buyer says an item never came. Under the eBay Money Back Guarantee, buyers can report an item not received within 30 calendar days of the estimated delivery date, and sellers must respond within 3 business days. A delivery scan to the right address is the strongest reply you can give.

What does invalid tracking cost you in a dispute?

The real cost of a bad number shows up weeks later, when a buyer says the parcel never arrived. eBay looks at the tracking on the order to decide. If it shows a delivery scan at the buyer's address, you have a strong answer. If it shows nothing, or scans for a parcel in a different town, eBay has no evidence that you delivered, and the decision usually goes the buyer's way.

Example, with hypothetical numbers: you sell a £45 item and add a tracking number, but choose the wrong courier from the list. The parcel arrives on time, but eBay never reads a scan. Three weeks later the buyer opens an item not received request, perhaps because a neighbour took the parcel in. You have no delivery scan on the order. If you cannot show proof another way, you refund £45, you lose the item, and if the buyer asks eBay to step in and eBay closes the case without your resolution, the order also becomes a transaction defect.

Now the same sale with the right carrier selected: eBay shows a delivery scan at the buyer's postcode on the day it arrived. You reply to the request with that information within 3 business days, and the buyer finds the parcel with the neighbour. No refund, no defect.

A few seconds spent picking the right carrier is cheap insurance. If you find out later that a number was wrong, fix it on the order as soon as you notice, even if the parcel has already arrived. A correct number added late is far better than a wrong one left in place.

Tracking from a supplier that does not work

If a supplier sends the parcel and gives you a number, you inherit any problem with it. Typical issues are numbers from a booking system rather than the carrier, numbers sent days after dispatch, and parcels that change carrier mid-journey with a new number.

Ask suppliers for the carrier name with every number, and test a few numbers on the carrier's website before relying on them. If a supplier cannot give you readable tracking, that is a reason to look for another one.

Remember eBay's drop shipping policy: dropshipping, where you fulfil orders directly from a wholesale supplier, is allowed; listing an item and then buying it from another retailer or marketplace that ships directly to your customer is not allowed. You are responsible for safe delivery within the time in your listing whoever packs the parcel, so a tracking problem on their side is still yours to solve with the buyer.

How to fix a tracking number already on an order

1. Open Seller Hub, then Orders, and find the order. Dispatched orders are in the dispatched or all orders view.
2. Open the order details and choose the option to edit tracking.
3. Correct the number, the carrier, or both, and save.
4. Check the order page a few hours later to make sure scans now show.
5. Message the buyer with the new details in one short sentence.

If eBay still rejects the number with the right carrier selected, check it on the carrier's site. If the carrier recognises it and eBay does not, keep a screenshot of the carrier's page with the scans and dates. It can help if a case is opened, and eBay's customer service can look at it.

Preventing invalid tracking in the first place

• Scan the barcode with the eBay app or paste from the label file instead of typing.
• Save a short list of the carriers you use and the exact name eBay gives each one.
• Do not add tracking until the parcel is ready to go.
• Use one tracking number per parcel, never across orders.
• At the end of each day, open five random dispatched orders and confirm scans show.
• Drop services whose numbers eBay regularly cannot read.

For the basics of adding numbers in Seller Hub, the app or in bulk, read how to add a tracking number on eBay. If you fulfil from Amazon and want tracking read from your Amazon orders and uploaded to eBay, see how Dropizon handles order tracking.