Sometimes data is not saved correctly when inserting an Excel file for several reasons:
The student's name should not exceed 4 characters (triple or quadruple only) to appear clearly on the smart screens during the call.
Any word (son, girl, or son) must be removed from the student's name.
The student ID number must not be identical to the father's.
The mobile number must not start with zero.
The mobile number must be a valid 9-digit number.
The father's ID number must be related to one mobile number only and not be repeated for another father.