Your seller marked the order as shipped, you have a tracking number, but when you paste it into the tracker — nothing. “Invalid number,” “not found,” or a blank result. Before you assume the worst, understand this: a non-functional AliExpress tracking number is extremely common and almost always has a mundane explanation. Genuine tracking fraud is rare. The overwhelming majority of cases have one of six straightforward causes — all explained below, along with exactly how to fix each one.
Table of Contents
How to Read Your AliExpress Tracking Number
Before diagnosing the problem, identify what type of tracking number you have. The format tells you which carrier is handling the package and how it should be tracked.
| Tracking Number Format | Carrier | Tracking Scope |
|---|---|---|
| Starts with letters, ends in CN (e.g., RZ123456789CN) | China Post / unregistered mail | China only — stops at export |
| Starts with LP or UM | AliExpress Standard Shipping / Cainiao | Full end-to-end (when activated) |
| Starts with YT | Yanwen Express | Partial — China and some destination countries |
| Starts with 1Z | UPS | Full end-to-end |
| Numbers only (long sequence) | Often 4PX or similar | Varies — check 17Track to identify |
If your number starts with R and ends in CN, it is an ordinary unregistered China Post shipment. This type of number will only show updates while the package is still inside China. Once it crosses the border, tracking goes silent. This is not a problem — it is simply how these shipments work.
The 6 Reasons Your Tracking Number Is Not Working
1. The Number Has Not Been Activated Yet
This is the most common cause by far. When a seller marks an order as “shipped,” they generate a tracking number — but the carrier has not yet scanned the package. The number exists in the system but returns “not found” until the first physical scan at the carrier’s sorting facility.
How long it takes to activate: Up to 10 to 15 business days after the seller marks the order as shipped. During Chinese New Year or major AliExpress sale periods, this window can extend further.
What to do: Wait. Check again after 5 business days, then again at 10. If the number is still not active after 15 business days, move to the steps below.
2. Untracked Shipping Method
If your order was very inexpensive — typically under $5 — the seller likely used an economy or unregistered shipping method. The tracking number you received may only show activity inside China, then go silent once the package crosses the border. Your package is still moving normally through international postal networks — there are simply no scan events generated after the China export.
How to identify this: Your tracking number starts with R and ends in CN. Once you see the export scan in China, the next update may not appear until delivery — or not at all.
What to do: Be patient and track the buyer protection date. If the protection period expires without delivery, open a dispute.
3. The Tracking Number Changed After Leaving China
When a package is handed from the Chinese carrier to your local postal service, a new tracking number is often assigned. The original Chinese number goes inactive, and the new local number is where your updates continue. AliExpress does not always display the second number automatically.
What to do: Paste your original tracking number into 17Track.net or ParcelsApp. These platforms detect carrier handoffs and display both the Chinese and local carrier tracking events in a single view. Your original number may reveal the local carrier number in the scan history.
4. Typing or Copy-Paste Error
This is more common than buyers admit. Copy-pasting from AliExpress occasionally captures leading or trailing spaces, or a character from the surrounding interface. A single extra space causes an “invalid number” error.
What to do: Copy the tracking number from your AliExpress order details, paste it into a plain text editor first to see it clearly, then copy it cleanly without any extra characters. Try entering it manually character by character if the issue persists.
5. Seller Uploaded a Number Before Shipping
Some sellers mark orders as shipped and upload a tracking number before the package has physically been handed to the carrier — sometimes to meet AliExpress’s dispatch deadline while the item is still being prepared, or because the seller is waiting for stock.
Signs this may be happening: The number was uploaded immediately after your order, but has shown no activity for more than 10 days.
What to do: Message the seller directly and ask for confirmation that the package has been physically handed to the carrier, along with the dispatch date. Most sellers respond honestly. If they admit a delay, ask for a revised ship date.
6. The Seller Provided a Fake or Placeholder Tracking Number
This is the least common cause but the one buyers most fear. A small number of low-reputation sellers assign a placeholder number — sometimes another buyer’s number from a different order — to satisfy AliExpress’s tracking requirement while not actually shipping your item.
Signs this may be happening:
- The tracking number shows “Delivered” in a completely different city or country
- The delivery address on the tracking does not match your postal code or region
- The seller becomes unresponsive when you ask about it
What to do: Take a screenshot of the tracking showing delivery to the wrong location. This screenshot is your primary evidence in a dispute. Without it, your claim is much weaker. See the dispute steps below.
AliExpress Tracking vs Reality: The Misleading Display Issue
One important nuance worth knowing: AliExpress’s own tracking display sometimes shows incorrect location information. The system occasionally marks a package as “arrived in destination country” when it has only just cleared Chinese export — the data is pulled from one carrier system but applied to the wrong stage of the journey. If your tracking looks contradictory or confusing, always cross-reference with 17Track or ParcelsApp rather than relying solely on AliExpress’s display.
How to Fix a Tracking Number That Genuinely Is Not Working
- Wait at least 10 to 15 business days from the marked ship date before treating the number as inactive.
- Try 17Track.net, ParcelsApp, or your national postal carrier’s website directly — these often surface data that AliExpress’s tracker does not show.
- Message the seller and ask for confirmation the order was physically dispatched and on what date. Keep the conversation in AliExpress chat where it is recorded.
- If the number is confirmed fake — showing delivery to the wrong address — take screenshots and open a dispute. Use the specific dispute reason: “Tracking number can’t be tracked / not valid.” Attach the screenshot showing incorrect delivery location as your evidence.
- Watch your buyer protection date — if it is approaching and the issue is unresolved, extend it immediately. Do not wait until it expires to act.
If AliExpress confirms in the dispute that the tracking number was false, a refund is processed within 3 to 15 days to your original payment method. If the refund shows in your AliExpress account but not yet in your bank, contact your bank — refunds to cards can take up to 20 business days.
How to Avoid Tracking Issues on Future Orders
- Choose AliExpress Standard Shipping or Premium Shipping over Seller’s Shipping Method or economy options. Both offer full international tracking.
- Avoid untracked economy shipping for any order over $10 — the tracking silence is not worth the savings.
- Check seller ratings before buying — sellers with 95%+ feedback and 2+ years of history have significantly lower rates of fake or placeholder tracking numbers.
- Save tracking screenshots periodically — if you need to open a dispute, having a historical record of all tracking events makes your case much stronger.
Final Thoughts
A non-working AliExpress tracking number is almost always a timing issue, an activation delay, or a carrier handoff — not fraud. The genuine fake tracking number scenario is rare and identifiable by a specific tell: the number shows delivery to the wrong location. If you see that, screenshot it immediately. For everything else, patience plus 17Track for cross-carrier verification resolves the confusion in the vast majority of cases.
Frequently Asked Questions
How long should I wait before worrying about a tracking number that shows “not found”?
At minimum 10 business days from the date the seller marked the order as shipped. During Chinese New Year or peak sale periods, 15 business days is a more realistic threshold. Tracking numbers for economy shipping methods can take even longer to activate, and some never generate international updates at all.
My tracking number ends in CN and stopped updating after the China export scan — is my package lost?
Almost certainly not. Tracking numbers ending in CN belong to unregistered or economy China Post shipments. These generate scan events inside China and at the export point, then go silent internationally. Your package is moving through normal postal channels — it just is not generating scan events. Monitor your buyer protection date and be patient.
How do I know which carrier is handling my package?
Paste your tracking number into 17Track.net — it automatically detects the carrier from the number format and displays all available scan events. ParcelsApp does the same. Both are free and support hundreds of carriers. This is more reliable than guessing from the number format alone.
What dispute reason should I use if my tracking number appears to be fake?
Use the reason “Tracking number can’t be tracked / not valid” when opening your dispute. Attach a screenshot of the tracking showing delivery to the wrong address (a different city or country than yours). This is the strongest evidence AliExpress accepts for fake tracking disputes.
The seller is unresponsive and the tracking has not updated for 20 days — what should I do?
Check your buyer protection expiry date immediately. If it is within 10 days of expiring, extend it now from your AliExpress order page. Then open a dispute with all tracking screenshots as evidence. AliExpress sides with buyers when tracking shows no valid activity and the seller is unresponsive — but your protection window must be active when you submit the dispute.
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