KLM will change their baggage policy regarding checked-in items. Starting from the 22nd of April you will have to pay for your suitcases and other items you wish to check in. This new policy ONLY applies to European flights. If you want to bring your luggage with you will have to add €15 per single trip when you are booking your flight, otherwise it will cost you €30 at the airport. Hand luggage restrictions remain the same.
The upside to this story is that KLM is lowering the prices for their European flights.
Go to the website of KLM if you want to read the whole article