Create a return

curl --request POST \
  --url https://api.shipbob.com/2025-07/return \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'shipbob_channel_id: <shipbob_channel_id>' \
  --data '{
  "fulfillment_center": {
    "id": 0,
    "name": "string"
  },
  "inventory": [
    {
      "id": 0,
      "lotDate": "2019-08-24T14:15:22Z",
      "lot_number": "string",
      "quantity": 0,
      "requested_action": 0
    }
  ],
  "original_shipment_id": 0,
  "reference_id": "string",
  "tracking_number": "string"
}'