How to add mobile number to Microsoft account.

Question

I had removed my old mobile number now not its not showing any option to add/update.

Any suggestion would be a great help.

Thanks

Answer 1

Microsoft are phasing out SMS security notifications on Microsoft accounts, they now indicate you can no longer add a phone number and to use a different recovery method on your account like a passkey.

https://support.microsoft.com/en-US/accounts-billing/manage/microsoft-account-security-info-verification-codes