How did WeChat withdraw the news for half an hour?

The specific operation is as follows: 1. Calculate the time point that needs to be withdrawn, such as 14:30. Before 14:30, enter the chat window with the contact who needs to withdraw the message. 2. At the top of the chat interface, click "Edit" and select "Recall messages in the last hour". 3. At this time, all chat records from 14:30 to the current time will be withdrawn. Including messages within half an hour, will be withdrawn. 4. Check the withdrawn chat records to ensure that all the key messages before 14:30 have been withdrawn. 5. If there are missing key messages that have not been withdrawn, you need to enter the list of recently sent messages and find the messages that need to be withdrawn. 6. Press and hold the message and select "Recall Message". This news will really be withdrawn. 7. Repeat steps 5-6 until all key messages that need to be withdrawn within half an hour are successfully withdrawn. 8. The other party will see the related message marked "Message Withdrawn" in the chat window.

The key point is: enter the chat interface before the time to recall, and select the one-hour recall function-view the recall list and recall the key messages respectively.