Send the active label to a PrintNode printer
Purchases a shipping label for the package via the entity’s configured Shippo carrier account.
The response includes the label URL, tracking number, tracking URL, and estimated delivery
date. The label cost is recorded and can be charged back to the shipment. Idempotent:
re-calling on a package that already has a label returns the existing label without voiding.
Requires fulfillment:write scope.
Authorizations
API key issued per entity via Settings > Developers > API Keys.
Each key carries scopes (e.g. orders:read, products:write).
Bearer token format: Authorization: Bearer ark_live_ent_
Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.
Headers
Client-generated unique key for idempotent POST/PATCH/DELETE operations. Alias for the Idempotency parameter. Max 255 chars. On retry with the same key, the original response is returned without re-executing the operation. Keys expire after 24 hours.
255
