Enforce MFA using CSV

Step 1. Connect-MsolService

Step 2. Run the following commands.

$auth = New-Object -TypeName Microsoft.Online.Administration.StrongAuthenticationRequirement

$auth.RelyingParty = "*"

Step 3. Choose the MFA State.

You can choose between "Enabled" and "Enforced"

$auth.State = "Enabled"

Step 4: Choose the date.

Any devices issued for a user before this date would require MFA setup. Normally, we would select the date of running the command.

$auth.RememberDevicesNotIssuedBefore = (Get-Date)

Step 5. Activate MFA.

For one user

Set-MsolUser -UserPrincipalName <UserPrincipalName> -StrongAuthenticationRequirements $auth

Using CSV- Create a CSV with column UserPrincipalName and place users under this column.

Import-Csv C:\RAhul\userMFA.csv | Get-MsolUser | Foreach{ Set-MsolUser -UserPrincipalName $_.UserPrincipalName -StrongAuthenticationRequirements $auth}