Create Return Label
Purchases a return shipping label for an existing return order. If a label has already been purchased, returns the existing label data (200 OK). Otherwise purchases a new label and returns it (201 Created).
Authentication
Authentication using Personal Access Token (PAT) token
Path parameters
Headers
Query parameters
Request
Optional label file format. Accepted values: PDF, PNG. If not provided, carrier default format is used
Customer return address. Required if shipment_id is not provided
Ship option name (e.g. “UPS Ground”). Resolved against available return ship options. Falls back to cheapest available option if not matched
Response
Label already purchased — returns existing label data
Name of the shipping carrier (e.g. USPS, UPS, FedEx)
Specific carrier service used (e.g. Ground Advantage, Priority Mail)
QR code image URL for label-less returns. Currently null in V1

