The 2026 reference for every shipping carrier — and whether eBay, Shopify, and PayPal Seller Protection recognize it for tracking validation. Bookmark this page; carrier recognition shifts every quarter, and we update on the same cadence.
How to read this database:
- ✓ Accepted — tracking validates and counts toward seller metrics
- ⚠ Manual only — accepted only when entered manually; no auto-sync
- ✗ Rejected — tracking triggers defects, voids Seller Protection
Tier 1 — Major US & Global Carriers
USPS (United States Postal Service)
- eBay: ✓ Accepted — primary recognized carrier
- Shopify auto-sync: ✓ Accepted
- PayPal Seller Protection: ✓ Accepted
- Tracking format: 20 or 22 digits (e.g.,
9400 1112 0203 4567 8901 23) - Common uses: Domestic US first-class, Priority Mail, Ground Advantage. The default for most US eBay sellers and Shopify dropshippers shipping domestically.
FedEx
- eBay: ✓ Accepted
- Shopify auto-sync: ✓ Accepted
- PayPal Seller Protection: ✓ Accepted
- Tracking format: 12 or 15 digits
- Common uses: Domestic ground and express, international air freight, FedEx Smartpost (handed off to USPS).
UPS
- eBay: ✓ Accepted
- Shopify auto-sync: ✓ Accepted
- PayPal Seller Protection: ✓ Accepted
- Tracking format:
1Z+ 16 alphanumeric (e.g.,1Z999AA10123456784) - Common uses: Heavy or oversize parcels, UPS Ground for B2B, UPS Mail Innovations (USPS handoff).
DHL (eCommerce + Express)
- eBay: ✓ Accepted
- Shopify auto-sync: ✓ Accepted
- PayPal Seller Protection: ✓ Accepted
- Tracking format: 10 digits (Express) or various (eCommerce)
- Common uses: International eCommerce shipping and express courier.
Tier 2 — Regional US Carriers
OnTrac
- eBay: ✓ Accepted (added to approved list 2024)
- Shopify auto-sync: ✓ Accepted
- PayPal: ✓ Accepted
- Common uses: West Coast (CA, NV, AZ, OR, WA, UT, ID, CO) regional delivery — often used as a USPS replacement by Amazon and Shopify for last-mile.
LaserShip
- eBay: ✓ Accepted
- Shopify auto-sync: ✓ Accepted
- PayPal: ✓ Accepted
- Note: LaserShip merged with OnTrac in 2022 — tracking still validates under either brand name.
Amazon Logistics (TBA)
- eBay: ✗ Rejected
- Shopify auto-sync: ✗ Rejected
- PayPal Seller Protection: ✗ Rejected
- Tracking format:
TBA+ 13 digits - Why rejected: Amazon Logistics is Amazon's in-house carrier. eBay has no API to verify scans, and Amazon does not share data externally. TBA numbers are not trackable on any public carrier site. Amazon-to-eBay dropshippers must replace TBA with a USPS/FedEx/UPS number before upload.
Discontinued or Removed Carriers
Aquiline
- eBay: ✗ Removed from approved list (late 2025)
- Shopify auto-sync: ✗ Rejected
- PayPal: ✗ Rejected
- What it was: A tracking-number issuance service used by Amazon-to-eBay dropshippers. Not a real carrier — no physical shipments. Full Aquiline tracking explainer →
Bluecare Express
- eBay: ✗ Removed from approved list (late 2025)
- Shopify auto-sync: ✗ Rejected
- PayPal: ✗ Rejected
- What it was: Same model as Aquiline — tracking-conversion service. Removed simultaneously.
International / Cross-Border Carriers
Yanwen
- eBay: ⚠ Manual only (not on auto-validate list)
- Shopify auto-sync: ✗ Rejected
- PayPal Seller Protection: ✗ Rejected
- Common uses: AliExpress Standard Shipping, low-cost China-to-US.
- Risk: Tracking shows on 17track but voids Seller Protection. Most Shopify dropshippers replace Yanwen tracking before upload.
4PX
- eBay: ⚠ Manual only
- Shopify auto-sync: ✗ Rejected
- PayPal: ✗ Rejected
- Common uses: Cross-border China-Europe, 4PX-USPS handoffs.
YunExpress
- eBay: ✗ Rejected
- Shopify auto-sync: ✗ Rejected
- PayPal: ✗ Rejected
CJPacket / CJ Logistics
- eBay: ✗ Rejected
- Shopify auto-sync: ✗ Rejected
- PayPal Seller Protection: ✗ Rejected
- Note: CJ Dropshipping's in-house carrier. Full CJ Dropshipping tracking workaround →
CEVA Logistics
- eBay: ⚠ Manual only
- Shopify: ✗ Rejected for auto-sync
Cainiao
- eBay: ✗ Rejected
- Shopify auto-sync: ✗ Rejected
- Note: Alibaba's logistics arm. Common on AliExpress Standard Shipping fulfillment.
Tracking Aggregators (Not Carriers)
These are not carriers — they are universal tracking-lookup tools that aggregate scans across multiple real carriers. You cannot upload an "AfterShip number" or a "17track number" to eBay or Shopify — there is no such thing. You upload the underlying real carrier number, which AfterShip / 17track / ParcelsApp can then look up:
- AfterShip — universal tracking aggregator (1,000+ carriers indexed)
- 17track — universal tracking aggregator (2,200+ carriers indexed)
- ParcelsApp — universal tracking aggregator (800+ carriers indexed)
- Pkge.net, TrackingMore, EasyShip — same model
If you need a real tracking number to upload to a marketplace (not just look one up), use a verified tracking-number service like TrackCaptain — pay $0.115 per verified USPS/FedEx/UPS number, credits never expire.
Quick Reference: What to Upload
Selling on eBay? Upload only USPS, FedEx, UPS, DHL, OnTrac, or LaserShip. Full eBay tracking compliance guide →
Selling on Shopify w/ PayPal? Upload USPS, FedEx, UPS, or DHL. CJ / AliExpress / Yanwen tracking voids Seller Protection. Shopify dropshipping tracking hub →
Need a valid number? Get one from TrackCaptain — $0.115 per verified number, instant claim, credits never expire.
Recent Updates
- May 2026: Database published.
- Late 2025: eBay removed Aquiline and Bluecare Express from approved carrier list.
- 2024: OnTrac added to eBay's approved list following service-area expansion.
- 2022: LaserShip + OnTrac merger — tracking validates under either name.
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