Adding Family member to Family app.

Use these checks in order:

1. Sign in with the family organizer account at family.microsoft.com and select Add a family member again.
2. Enter the second child’s email address or phone number and choose Member, then send the invite.
3. Make sure the child accepts the invitation from the same Microsoft account that received the invite. The join link prompts sign-in to a Microsoft account before the family group can be accepted.
4. If the child is under the statutory age, complete the required adult consent step when prompted.
5. Check whether the child is already in another family group. A member can only belong to one family group at a time, so they must leave or be removed from the current group before joining a new one.
6. If adding by email keeps failing, and the member is in North America, try adding them by mobile number instead.
7. Try the same add flow in the Microsoft Family Safety app:
   • Open the app
   • Tap Add a family member
   • Enter the child’s email address or phone number
   • Choose Member
   • Tap Invite to family group
8. If the child was invited but does not appear, verify the invite was accepted from the correct account alias and check that the account is a personal Microsoft account, not a school or work account.

If the child signs in successfully but still cannot join, the most likely blockers from the available guidance are:

• accepted the invite with a different account or alias
• already belongs to another family group
• adult consent is still pending
• using a non-personal account

References:

• Add people to your family group
• Getting started with Microsoft Family Safety
• Family Safety - Microsoft Q&A I created a Family Safety account, created 2 accounts 2 of my sons. My 3rd son already had an account. I’m trying to add him under my account, I go through all the confirmation steps, and it says he’s already there. I’ve given it four days and it is still not visible. Thank you.