The text message reminds me that I can randomly select seats, but I can’t select seats on the plane. What’s going on?

Sometimes the opening time has not yet arrived, and the regulations of each airline are different (some can be a whole day before departure, some can be 24 hours in advance, and some can be on the day of departure), the text message is For the same issue, there is no specific limit. Zongheng Travel in Alipay is the earliest software to select your seat. You can swipe it several times, or go to the official website directly on your computer, and it will tell you the specific time to start selecting your seat