China Eastern Airlines can't receive short messages at check-in.

The so-called check-in procedure is the procedure before boarding. Now some flights can go through this procedure online before going to the airport, such as submitting identity information, choosing seats, purchasing excess baggage allowance and booking special services (such as special meals). After arriving at the airport, you can print your boarding pass directly on the self-service terminal, and then check your luggage on the dedicated express lane, so you can board the plane directly, saving a lot of time and trouble in queuing. At present, if the automatic check-in fails, you can only go to the airport site or log in to the airline official website to see if there are any other remedies.