Admission / Admission Settings / Signup & Applicants Portal / Personal & Admission Data Form Setup / Allow Applicants to optionally add only the names of Father and Mother relative contacts
Here, you specify whether applicants can add only the names of parents.
Example
Setting -> Active
It is possible to add only the first name and last name of the parents, as shown in Figure 1&2
Figure 1
Figure 2
Setting -> Inactive
The option to enter only first name and last name does not exist (Figure 3)
Figure 3