Why does the other party fail to receive or receive incomplete information after the SMS is sent (the mobile phone shows that it was sent successfully)?

Sorry, I don't know much about the mobile business here.

But this phenomenon may have two situations: 1, which is related to the network. 1) There may be a problem with the SMS center of the mobile company or it may be related to the network signal. 2) The receiver may be in an unstable signal state, etc. 2. It may be related to the mobile phone terminal. Different mobile phone models have different short message formats, especially pictures or expressions. Some mobile phones don't support this content, so there will be garbled code.

By the way, how many Chinese characters does SMS refer to? The standard short message is 70 Chinese characters or 160 characters. If it exceeds this standard, the other party's garbled code is related to the above two.