Upsert Package

Use this API when you completed creating a package, to return a formatted label (ZPL file) which you can send to a ZPL-compatible label printer. Read more about the package object.

Response (Output) Params
FieldDescription
fleet_package_label_id
string
The package's unique barcode ID, which can be included on carrier labels and used to match packages with orders if the main label is lost or if the carrier sends updates using their own barcode.
label_base64
string
The shipping label, encoded in base64 format.
label_url
string
The URL of the shipping label.

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