This error message means that an incorrect or unknown combination of carrier and service level is booked.

• Check whether you have made a spelling mistake in the service level
• Check whether the service level is possible with this carrier code
• Check if the carrier code is correct (always 3 letters)
• Are you trying to book a new service? Contact our support department.

Are you unable to find a solution or are you trying to book a new service?

Contact support to resolve this problem and indicate where the shipment will receive this error message (reference number of the shipment) and what combination you're trying to book.