birthdate in microsoft 365

If the invited family member is being treated as a child account, the birth date usually cannot be corrected from that account’s own profile. The date must be changed by the adult account that gave consent or manages the child account.

Steps:

1. Sign in with the adult Microsoft account that manages the family at https://account.live.com/mykids.aspx
2. Find the invited family member’s account.
3. Select Edit this child's personal info.
4. Enter the correct birth date and save the change.

If the account shows “Parent or guardian consent is required for this account”:

1. Go to https://login.live.com to start the consent request.
2. Select I’m a parent or guardian.
3. Sign in with an adult personal Microsoft account.
4. Select Yes, I agree.
5. Select Family Safety.
6. Return to https://account.live.com/mykids.aspx and edit the child’s personal info.

Important details:

• A child account cannot remove its own consent or change its own date of birth when it is below the statutory age for that country or region.
• If Edit this child’s personal info does not appear, either the signed-in adult does not have permission, another adult has consent for that child, or the account is no longer classed as a child.
• If the person is actually an adult but Microsoft thinks the account is a child account, use the same child-account correction flow above.

If the account is already recognized as an adult account, the birth date can be changed directly in the Microsoft account profile by signing in to the account and editing the profile information.

References:

• How to change a birth date on a Microsoft account
• Troubleshooting Microsoft Family Safety
• Managing parental consent