Negotiated Rates are only returned for qualified Shipper Account Numbers. Eligibility is determined using the combination of User ID and the Shipper's Shipper Account Number in the XML request.
If the User ID is qualified, both Published Rates and Negotiated Rates are returned.
If the User ID or Shipper Account Number is not qualified for Negotiated Rates, only Published Rates are returned in the response.
Depending on the API, the User ID may be case sensitive.