Guangzhou Public Security Bureau successfully made an appointment without text message

It may be that the SMS notification is delayed; maybe the mobile phone number left is wrong, you can call to check.

An appointment is a "contract that agrees to conclude a certain contract in the future." Usually, people refer to the contract to be concluded in the future as a contract, and the contract with the conclusion of this contract as its subject matter is an appointment.

Making an appointment is undoubtedly a pre-arrangement of who to sign a contract with and on what matters. This seems to restrict the freedom of contract of the parties, but in fact it takes the freedom of contract to the extreme.