Wechat official account helps to send text messages.

That's because you set a risk operation prompt on the official WeChat account!

Log in to the official account of WeChat, click on the security center in the navigation on the left, click on "Risk Operation Protection" on the right, click on "Details" on the right, find the mass message, and click "Close Protection". You need your boss's permission to do this operation!

After setting, you don't need administrator's confirmation to send messages in the future.