Mobile phone network failure. When saving the tag, if there is a problem with the mobile phone network, it cannot be saved successfully. Therefore, it is necessary to check whether the network of the mobile phone is connected and whether the message can be sent successfully.

Duplicate label names. When the label name to be saved is duplicate with the existing label name, the saving fails, and you only need to rename it.

Wechat is a free social program launched by Tencent on 2011,which provides instant messaging service for smart terminals. Wechat supports fast sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms. At the same time, you can also use the materials and files that enjoy streaming media content through * *.

Wechat provides public platform, friends circle, message push and other functions. Users can add friends and pay attention to public platforms by "shaking", "searching for numbers", "people nearby" and scanning QR codes. At the same time, WeChat will share the content with friends and share the wonderful content that users see to WeChat friends circle.