Nitromule

Return and round-trip labels

Updated 2026-09-07

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Returns send a package back to you. Round-trip covers outbound and return together. Choose dashboard tools when you place the order; choose portals when the customer should self-serve.

Dashboard returns

  1. Open the original outbound order / shipment when the product offers return label.
  2. Confirm the return-to address (your warehouse).
  3. Enter the customer ship-from and package details.
  4. Get rates and buy the return label.
  5. Send the PDF to the customer (or include it in the box).

Customer self-serve

Use portals when customers should pay or generate labels themselves:

Tips

  • Match packaging to what actually ships back
  • Staff the return dock for the carriers you enable
  • Void unused return labels the same way as outbound — void and download

API: POST /shipments/{orderId}/return-label — see docs quickstart.