Print a USPS shipping label through a consolidator carrier account using the Pitney Bowes Shipping API Create Shipment operation
domain: docs.shippingapi.pitneybowes.com · 6 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Create a Pitney Bowes developer account and merchant record, then generate OAuth credentials
Request an OAuth token before calling any shipping endpoint
Test the integration in the Sandbox environment, which mirrors production behavior but only prints test labels
Call the Create Shipment endpoint with parcel, service (e.g., USPS via PB Expedited or PMOD), and recipient details
Retrieve the generated label and shipment tracking identifier from the response
Switch endpoint and credentials to production only after sandbox validation passes
Known gotchas
USPS labels are printed through Pitney Bowes as a consolidator (PB Expedited/PMOD), not through a direct USPS account — tracking and service names differ from a native USPS integration
A merchant must be added to the developer account before USPS label printing is enabled; account creation alone is not sufficient
Sandbox and production use separate OAuth credentials and do not share shipment records, so a Sandbox-tested flow must be re-verified against production before go-live
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