Why did the other party add me as a friend and I failed to reply to the verification message?

First: it may be a long time ago that the other party added you as a friend. For example, someone added you as a friend six months ago, and the system sent you a verification message. Let's make an appointment after half a year. It's definitely not possible. The news has expired.

Second: If you just added you as a friend, your reply to the verification message failed, which may be caused by the instability of your network. I suggest trying to agree in the future.

Third: If you just added as a friend and failed to reply to the verification message, it may also be that the QQ version is too low or the built-in is not damaged. It is recommended to uninstall QQ and download and install it again.

Fourth: If you've just been added as a friend, it's just a matter of agreeing again. Click the mouse twice more. In fact, you agreed the first time you clicked, and the system hasn't responded yet. When you click for the second time, it will show that you failed.

What is the specific reason? You can check it accordingly. Thanks for adoption