What are the rules for renaming WeChat official account after successful registration?

The official account name of WeChat WeChat can be set to 2~ 16 Chinese characters or 4~32 characters (including simplified Chinese, traditional Chinese, English and mixed case and number). Nicknames of public platforms can support duplicate names, and names can be repeated. Once the official WeChat account is registered, the name will not be changed unless there are special circumstances. If the name is not suspected of infringement, it will be updated after 24 hours. If the name is suspected of infringement, it will take at least 15 days to know the result.