Invite Entra ID Guests with a customised message body and a specific CC recipient using Invoke-MgGraphRequest

invite-entra-guests-msgraph.ps1

# Connect to Microsoft Graph
Connect-MgGraph -Scopes "User.Invite.All"

# Microsoft Graph API endpoint for invitations
$graphApiUrl = "https://graph.microsoft.com/v1.0/invitations"

# Create the invitation object
$invitation = @{
    invitedUserDisplayName = "Daniel Streefkerk"
    invitedUserEmailAddress = "daniel@example.com"
    inviteRedirectUrl       = "https://myapps.microsoft.com"
    sendInvitationMessage   = $true
    invitedUserMessageInfo  = @{
        messageLanguage = "en-US"
        customizedMessageBody = "Welcome to the team, Daniel!"
        ccRecipients = @(
            @{
                emailAddress = @{
                    name = "Admin"
                    address = "cc_address@example.com"
                }
            }
        )
    }
}

# Convert the invitation object to JSON
$json = $invitation | ConvertTo-Json -Depth 4

# Send the invitation
$response = Invoke-MgGraphRequest -Uri $graphApiUrl -Body $json -Method POST

# Output the response
$response

# Disconnect from Microsoft Graph when done
Disconnect-MgGraph