Do you have your own account or are you using your child's to login?
You should have your own account. This allows for your Campus person record and the relationships set up between you and your children to connect properly in the Mobile App. Ask your school for your own account.
When you log in you should see your name at the top of the page. If you see another name here, you know the user account that you’re using is tied to the other person’s record.
Make sure the school has activated your Portal setting.
The relationship recorded in Campus between you and your child needs to be set up to include Portal access. This allows you to view your child’s information in the Portal and Mobile App. Your school manages this setting; only they can fix this if the setting is not turned on. Please contact your school to fix this. Make sure to tell them which username you are using and to whom the account belongs.