From Date
Main Settings / General Settings/ Student-Parent Portal / Personal Data Management / Allow relatives to edit Student’s personal data from date
Here you set the start date for the possibility for relatives to modify their children’s personal data.
Example
If the start date is later than the current date the Personal Data function will be disable as shown below. (Figure 1)
Current date is 29/10/2021.
Setting -> Active -> 01/01/2022
Figure 1
Setting -> Active -> 01/01/2021
Now the option is enabled
Figure 2