Why did the Gansu micro-police police not send a text message after the approval of the non-criminal record certificate was approved?

According to the query of relevant information, the reason why the Gansu micro-police police did not send text messages after passing the approval of the criminal record certificate was because the information notification function was not activated. After the "Certificate of No Criminal Record" on the Gansu Micro Police software is approved, it will be automatically sent to the user's mobile phone. The user did not receive the text message because the information notification function was not enabled. At this time, you only need to log in to the Micro Police account and click The police service can inquire the information of "declaration of no criminal record certificate".