Why can't I see it when I send a text message, but the other party can receive it?

Always don't receive, or occasionally, to distinguish clearly. If you can't get it, I suggest you use your mobile phone card first and try to send it to someone else's mobile phone. If it doesn't work, it's your card, or there's something wrong with the number. You need to contact the operator (China Mobile, China Unicom) to solve it. If you use someone else's mobile phone to send a message, the other party can receive it, which means it's your mobile phone. So how to solve it? You don't have to teach:) If everyone else can receive it and only one person can't, then you have to see if there is anything wrong with that person's mobile phone or number. Of course, it does not rule out the problem that he deliberately refused to accept your information.