There are additional fields like "postalCode" and "phoneSuffix" that certain carriers need to authenticate your API request. Find the full list here.
Some carriers need to provide additional information about the tracking (to ensure that you are really the owner of the tracking information) in addition to the tracking number. These fields are handled differently by specific carriers.
Additional fields Format
| Name | Description | Example |
|---|---|---|
| postalCode | Postal code of recipient address | 10001 |
| phoneSuffix | The last 4 digits of the shipment sender's or recipient's phone number | 1234 |
Carriers that require additional fields
| Carrier | courierCode | Required fields |
|---|---|---|
| Allied Express | alliedexpress | postalCode |
| B2C Europe | b2ceurope-be | postalCode |
| Colis Prive | colis-prive | postalCode |
| DX | dxdelivery | postalCode |
| GEL Express Logistik | gel-express-logistik | postalCode |
| GLS Spain (National) | gls-spain | postalCode |
| Mondial Relay | mondialrelay | postalCode |
| PostNL | postnl | postalCode |
| Postmedia Parcel Services | postmedia-parcel-services-bni-pa | postalCode |
| The Delivery Group | thedeliverygroup | postalCode |
| XDP EXPRESS | xdpexpress | postalCode |
| Yodel | yodel | postalCode |
| sfb2c | SF Express | phoneSuffix |
| jtexpress-mx | J&T Express (MX) | phoneSuffix |
| jetid | J&T Express (ID) | phoneSuffix |