Why can I only send a short message with 160 characters at a time? Please answer through business.

In order to avoid overloading the system with over-standard forwarding and reply operations, the developers of short message technology unanimously agree to use the maximum sending amount of 160 characters at a time. However, the limit of 160 character is not absolute. The character length limit may vary depending on the network, mobile phone model and wireless carrier. Many mobile phones are not allowed to continue typing when they reach the limit of 160 characters. So you can only continue typing after you send it. However, many services can automatically split the short message you send into several information blocks within 160 characters.