I can't. According to the query of the alumni check-in app, the alumni check-in function is mainly to confirm the check-in location according to the location information. If the check-in location is wrong, the alumni can't sign in. The reason for the error of alumni's registration place is that the permission of registration place is not opened, and the geographical location information is insufficient, which will affect the fact that alumni's location is inconsistent with the actual situation. The system will determine that the registration place is wrong and the registration cannot be completed.