1. System error: If the registration is made within the specified time, the information of the maternity insurance agency may not be fed back in time due to system errors and other reasons.
2. The birth registration is not approved: the birth registration is overdue, and the maternity insurance agency fails to pass the audit, which may also lead to the lack of information inquiry.
3. Network reasons: the failure to find information after submitting the birth registration may be related to network reasons, and poor network conditions will affect information inquiry.
Please note that the above are only some possible reasons, and the specific reasons need to consult the local family planning office or relevant institutions to obtain accurate information.