Depending on various factors such as the destination, baggage weight and number of pieces, there are various options. In general, if the weight does not exceed 30 kg on your extra baggage, we recommend that you pay for extra baggage at the airport. That way, you dont have to leave your luggage with the cargo company, which usually is in a different terminal. You can then check in as normal. Your baggage will also travel on your flight departure.
SAS Cargo website