Why didn't I get the message back to Beijing?

The location is not high-risk, and there is no need to isolate it when returning to Beijing. Only when high-risk people need to be quarantined can they receive short messages back to Beijing. I didn't receive a text message back to Beijing, which means that the location is not high-risk, and I don't need to be isolated when I return to Beijing. Short message, abbreviated as SMS, is a text or digital message directly sent or received by users through mobile phones or other telecommunication terminals. The number of characters that users can send and receive SMS at a time is 160 English or numeric characters or 70 Chinese characters.