What does aviation bidding mean?

Aviation bidding is an upgrade of aviation bidding.

Before our plane takes off, the airline of the plane will send a short message to the passengers in the selected economy class, inviting them to participate in the aviation bidding and upgrading activities. The specific steps to participate in competitive upgrade are as follows: passengers need to go to the official website page of the airline according to the instructions in the sent SMS, tell them that they are willing to upgrade and tell them the amount they are willing to pay for the upgrade. The airline will choose the passenger who is willing to spend the most among the passengers participating in competitive upgrade and can upgrade to business class or first class. However, after receiving the text message, you should confirm with the airline whether there is this activity.