Scandinavian Airlines System (SAS) strongly recommends that you allow yourself ample time (minimum 90 minutes) between scheduled flight arrival and the last daily departure of relevant public transport from the airport.
Flight delays may occur, and flight delays are often due to circumstances which are force majeure for the airline. In cases of force majeure the airline is not liable for any additional costs you might be faced with due to delayed incoming flight. It is therefore sensible planning to allow yourself ample time between scheduled flight arrival and any further ground transportation.
If SAS, however, should be found liable for the delayed arrival to your destination airport (= the delay is not due to force majeure), you must have allowed yourself minimum 90 minutes between scheduled flight arrival and the last daily departure of relevant public transport from the airport before SAS will consider eventual compensation for lost ground connection (such compensation always limited to your actual and documented costs due to night closed public transport).