Why can't some QQ messages be withdrawn within two minutes?

The two-minute retraction should be related to the published content, including politically sensitive topics or excessive format.

QQ message revocation steps:

Open QQ and send a message to your friends.

Press and hold the sent message, and click "Withdraw".

Click "OK" in the prompt box that appears to complete the withdrawal.

How to recall messages longer than 2 minutes:

One-on-one messages sent for more than two minutes cannot be retrieved.

Groups created by themselves can recall messages for more than two minutes, and only the group owner can operate them.

The operation method is the same as the one-to-one withdrawal method.

To sum up, in some cases, it can be withdrawn after more than two minutes, and in other cases, it can't. So why is the QQ message withdrawal time set to two minutes? This is because from the information receiver's point of view, two minutes is the average time from receiving to reading a message. The exit time is less than 2 minutes, which will maintain the integrity of the context to the greatest extent and give a stable user experience.