I am having difficulties sending messages via the WeChat Web platform. Despite the comprehensive functions and the ability to stay connected with multiple people at the same time, I repeatedly encounter problems when sending notices. In particular, I cannot access the field for entering messages or the messages I've sent are not displayed on the platform. It seems like there is a technical issue affecting the synchronization between the mobile and web versions. This problem hinders the ability to effectively communicate in real-time and use the full range of WeChat Web features.

One of the most effective solutions to this problem could be a software update. Ensure that both your mobile app and the WeChat web version are up-to-date. Bug fixes and improvements contained in the latest versions can solve the message synchronization issue. Also, check your internet connection, as a weak or unstable connection can cause issues when sending messages. Furthermore, it might be helpful to clear your browser's cache, as stacked up data can hinder the smooth functioning of the app. Lastly, it is recommended to consult the WeChat Help Center or contact the customer service if the problem persists.