A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
Hello Suleiman Asmahan,
Welcome to Microsoft Q&A forum. It's my pleasure to help you today.
I understand that you'd like to add your Roblox account to your Authenticator app. Microsoft Authenticator app has a cloud storage option, if it is on, you can just sign in with your Microsoft Account, and your account information will be pulled from your account. May I know if you still have access to your old phone? Also, may I know if you are able to log in to your Microsoft account and Roblox account right now?
I'm waiting for your reply so we can work on it together.