If you’re forced to use Microsoft Authenticator for work, then it’s likely the IT department wants you using the push notification option for MFA and not MFA over SMS. Although the IT dept prefers this option as it is more secure, it is not always possible. Some employees may only have dumb flip phones that can only do SMS. Or they may have a Huawei phone that is not able to connect to the Google Play store to download Microsoft Authenticator. IT must make an exception in these cases unless IT is also supplying the employees’ phones.
If you’re forced to use Microsoft Authenticator for work, then it’s likely the IT department wants you using the push notification option for MFA and not MFA over SMS. Although the IT dept prefers this option as it is more secure, it is not always possible. Some employees may only have dumb flip phones that can only do SMS. Or they may have a Huawei phone that is not able to connect to the Google Play store to download Microsoft Authenticator. IT must make an exception in these cases unless IT is also supplying the employees’ phones.