The following steps are how to set up a WeChat group:
Open WeChat and enter the group chat you want to set.
In the group chat page, find and click+.
In the pop-up menu, find and click "Group Announcement".
Enter the important information you want to set in the group announcement, and then click "Publish".
After publishing, there will be a new message prompt in the group chat, showing "Set as group to be done".
Click the message prompt to enter the confirmation page.
On the confirmation page, check the information you want to set as a group to do, and then click "Set as a group to do".
At this point, a small prompt box will appear above the group chat, showing "You have been set as a group to do", so that group members will know that this message needs attention.