You have an Azure Active Directory (Azure AD) tenant named contoso.com. You have a CSV file that contains the names and email addresses of 500…

The New-AzureADMSInvitation cmdlet is designed to invite external users to an Azure AD

tenant. When an invitation is created using this cmdlet, a guest user account is provisioned

in the directory. A PowerShell script can iterate through a CSV file and execute this cmdlet

for each entry, effectively creating the 500 guest user accounts as required. This is a

standard and supported method for bulk inviting guest users.

Microsoft. (n.d.). New-AzureADMSInvitation. Microsoft Learn. Retrieved from

https://learn.microsoft.com/en-us/powershell/module/azuread/newazureadmsinvitation?view=azureadps-2.0

Microsoft. (n.d.). Add Azure Active Directory B2B collaboration users in the Azure portal.

Microsoft Learn. (This article discusses B2B collaboration and guest users, for which New-

AzureADMSInvitation is the programmatic method). Retrieved from

https://learn.microsoft.com/en-us/azure/active-directory/external-identities/add-usersadministrator#add-guest-users-to-the-directory

Microsoft. (n.d.). Bulk invite Azure AD B2B collaboration users. Microsoft Learn. (This article

explicitly mentions using PowerShell and New-AzureADMSInvitation for bulk invitations).

Retrieved from https://learn.microsoft.com/en-us/azure/active-directory/externalidentities/bulk-invite-powershell