Configurare un'applicazione Azure per Exchange Online

1. In qualità di amministratore, accedi al portale di Azure.
2. Fai clic su Cloud Shell PowerShell.
3. Se richiesto, crea un account di archiviazione e accetta le impostazioni predefinite.
4. Per creare l'applicazione, inserisci questo comando fai clic su Invio:

   Install-Module Microsoft.Graph -Scope CurrentUser

5. Se viene visualizzato un prompt per l'installazione da un repository non attendibile, inserisci Y fai clic su Invio.
6. Copia il seguente blocco di codice, incollalo in PowerShell e fai clic su Invio.

    <#    
   .SYNOPSIS    
   Automates the creation of a Single-Tenant Entra ID App for Workspace Migration.    
   Strictly forces account selection and verifies specific Admin roles.    
   #>
   
   # Check if the module is missing
   if (-not (Get-Module -ListAvailable -Name Microsoft.Graph.Authentication)) {
       Write-Host "Microsoft Graph module is NOT installed." -ForegroundColor Yellow
       $UserResponse = Read-Host "Would you like to try installing Microsoft Graph? (Y/N)"
   
       if ($UserResponse -ieq "Y") {
           try {
               # Use only native cmdlets, no .NET property setting
               Install-Module -Name Microsoft.Graph -Scope CurrentUser -Force -AllowClobber
               Write-Host "Installation complete!" -ForegroundColor Green
           }
           catch {
               Write-Error "Policy is blocking installation. Please contact IT to install Microsoft.Graph module."
               Read-Host "Press Enter to exit"; exit
           }
       }
       else {
           exit
       }
   } else {
       Write-Host "Microsoft Graph modules detected. Proceeding..." -ForegroundColor Green
   }
   
   # --- STEP 0: THE "DEEP" LOGOUT ---
   Write-Host "Forcing session cleanup..." -ForegroundColor Gray
   Disconnect-MgGraph -ErrorAction SilentlyContinue
   
   # Force clear the local token cache folder if it exists
   $CachePath = "$env:USERPROFILE\.mg"
   if (Test-Path $CachePath) {
       try { Remove-Item $CachePath -Recurse -Force -ErrorAction SilentlyContinue } catch {}
   }
   
   Write-Host "Opening Microsoft Login... (Please select the correct account)" -ForegroundColor Cyan
   
   $RequiredScopes = @(
       "Application.ReadWrite.All", 
       "AppRoleAssignment.ReadWrite.All", 
       "Directory.Read.All", 
       "RoleManagement.Read.Directory"
   )
   
   try {
       # In v2, -ContextScope Process is the most reliable way to force account selection
       # and prevent the session from saving to the machine permanently.
       Connect-MgGraph -Scopes $RequiredScopes -ContextScope Process
   
       $Context = Get-MgContext
       if ($null -eq $Context) { throw "Login was cancelled or failed." }
   
       $UserPrincipal = $Context.Account
       Write-Host "Logged in as: $UserPrincipal" -ForegroundColor Green
   
       # --- ROLE VALIDATION ---
       Write-Host "Verifying Directory Roles..." -ForegroundColor Gray
       $UserRoles = Get-MgUserMemberOf -UserId $Context.Account -All | Where-Object { $_.AdditionalProperties.displayName -ne $null }
       
       $Authorized = $false
       $RequiredRoles = @("Global Administrator", "Privileged Role Administrator")
   
       foreach ($role in $UserRoles) {
           $roleName = $role.AdditionalProperties.displayName
           if ($roleName -in $RequiredRoles) {
               $Authorized = $true
               Write-Host "Access Granted: $roleName" -ForegroundColor Green
               break
           }
       }
   
       if (-not $Authorized) {
           Write-Host "`nCRITICAL ERROR: Insufficient Privileges." -ForegroundColor Red
           Write-Host "Account must be 'Global Administrator' or 'Privileged Role Administrator'." -ForegroundColor Yellow
           Disconnect-MgGraph
           Read-Host "`nPress Enter to exit"; exit
       }
   
   } catch {
       Write-Error "Login failed: $_"
       Read-Host "Press Enter to exit"; exit
   }
   
   # --- USER INPUT ---
   Write-Host "`n--- APPLICATION SETUP ---" -ForegroundColor Cyan
   $InputName = Read-Host "Enter the name for your new Entra ID Application (Default: Workspace Migration App)"
   $AppName = if ([string]::IsNullOrWhiteSpace($InputName)) { "Workspace Migration App" } else { $InputName }
   
   # --- CONFIGURATION ---
   # Updated Map containing all the requested application permissions
   $PermissionMap = @{
       "calendars.read"              = "Calendars.Read"     
       "contacts.read"               = "Contacts.Read"
       "directory.read.all"          = "Directory.Read.All"
       "group-conversation.read.all" = "Group-Conversation.Read.All"
       "mail.read"                   = "Mail.Read"
       "mailboxfolder.read.all"      = "MailboxFolder.Read.All"
       "mailboxitem.export.all"      = "MailboxItem.Export.All"
       "mailboxitem.read.all"        = "MailboxItem.Read.All"
       "tasks.read.all"              = "Tasks.Read.All"
       "user.read.all"               = "User.Read.All"
   }
   
   $TenantId = $Context.TenantId
   $GraphAppId = "00000003-0000-0000-c000-000000000000"
   
   try {
       # --- STEP 1: REGISTER APPLICATION ---
       Write-Host "Creating Application: $AppName..." -ForegroundColor Cyan
       $Application = New-MgApplication -BodyParameter @{
           displayName = $AppName
           signInAudience = "AzureADMyOrg"
       }
       
       # --- STEP 2: PREPARE SERVICE PRINCIPAL ---
       $NewServicePrincipal = New-MgServicePrincipal -BodyParameter @{ appId = $Application.AppId }
   
       Write-Host "Waiting 10 seconds for replication..." -ForegroundColor DarkGray
       Start-Sleep -Seconds 10
   
       # --- STEP 3: CONFIGURE & GRANT PERMISSIONS ---
       Write-Host "Configuring API Permissions & Granting Admin Consent..." -ForegroundColor Cyan
       $GraphSP = Get-MgServicePrincipal -Filter "AppId eq '$GraphAppId'" | Select-Object -First 1
       
       $ResourceAccessList = @()
   
       foreach ($key in $PermissionMap.Keys) {
           $RealRoleName = $PermissionMap[$key]
           $Role = $GraphSP.AppRoles | Where-Object { $_.Value -eq $RealRoleName }
   
           if ($Role) {
               $ResourceAccessList += @{ id = $Role.Id; type = "Role" }
   
               New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $NewServicePrincipal.Id -BodyParameter @{
                   principalId = $NewServicePrincipal.Id
                   resourceId  = $GraphSP.Id
                   appRoleId   = $Role.Id
               } | Out-Null
               Write-Host " - Granted: $RealRoleName" -ForegroundColor Gray
           }
       }
   
       Update-MgApplication -ApplicationId $Application.Id -RequiredResourceAccess @(@{
           resourceAppId  = $GraphAppId
           resourceAccess = $ResourceAccessList
       })
   
       # --- STEP 4: CREATE CLIENT SECRET ---
       Write-Host "Generating Client Secret..." -ForegroundColor Cyan
       $ExpiryDate = (Get-Date).AddYears(2).ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ")
       $PasswordCred = Add-MgApplicationPassword -ApplicationId $Application.Id -BodyParameter @{
           passwordCredential = @{
               displayName = "MigrationToolSecret"
               endDateTime = $ExpiryDate
           }
       }
   
       # --- OUTPUT ---
       Write-Host "`n-------------------------------------------------------" -ForegroundColor Yellow
       Write-Host "        SETUP COMPLETE - SAVE THESE DETAILS" -ForegroundColor Yellow
       Write-Host "-------------------------------------------------------" -ForegroundColor Yellow
       Write-Host "Application Name        : $AppName"
       Write-Host "Application (Client) ID : $($Application.AppId)"
       Write-Host "Client Secret Value     : $($PasswordCred.SecretText)"
       Write-Host "Directory (Tenant) ID   : $TenantId"
       Write-Warning "IMPORTANT: Copy the Client Secret Value immediately."
   
   }
   catch {
       Write-Error "Operation failed: $_"
   }
   
   # --- FINAL DISCONNECT ---
   Disconnect-MgGraph
   Read-Host "`nPress Enter to close this window"
       

7. Prendi nota delle seguenti credenziali e archiviale in modo sicuro. Se le credenziali vengono divulgate, gli hacker potrebbero accedere a tutti i tuoi dati di Exchange Online.
   • Client secret
   • ID applicazione (client)
   • ID directory (tenant)

1. In Windows, crea un nuovo file di testo normale e chiamalo migration_app_creator.ps1.
2. Copia il seguente blocco di codice, incollalo nel nuovo file e fai clic su Esegui con PowerShell.

<#    
.SYNOPSIS    
Automates the creation of a Single-Tenant Entra ID App for Workspace Migration.    
Strictly forces account selection and verifies specific Admin roles.    
#>

# Check if the module is missing
if (-not (Get-Module -ListAvailable -Name Microsoft.Graph.Authentication)) {
    Write-Host "Microsoft Graph module is NOT installed." -ForegroundColor Yellow
    $UserResponse = Read-Host "Would you like to try installing Microsoft Graph? (Y/N)"

    if ($UserResponse -ieq "Y") {
        try {
            # Use only native cmdlets, no .NET property setting
            Install-Module -Name Microsoft.Graph -Scope CurrentUser -Force -AllowClobber
            Write-Host "Installation complete!" -ForegroundColor Green
        }
        catch {
            Write-Error "Policy is blocking installation. Please contact IT to install Microsoft.Graph module."
            Read-Host "Press Enter to exit"; exit
        }
    }
    else {
        exit
    }
} else {
    Write-Host "Microsoft Graph modules detected. Proceeding..." -ForegroundColor Green
}

# --- STEP 0: THE "DEEP" LOGOUT ---
Write-Host "Forcing session cleanup..." -ForegroundColor Gray
Disconnect-MgGraph -ErrorAction SilentlyContinue

# Force clear the local token cache folder if it exists
$CachePath = "$env:USERPROFILE\.mg"
if (Test-Path $CachePath) {
    try { Remove-Item $CachePath -Recurse -Force -ErrorAction SilentlyContinue } catch {}
}

Write-Host "Opening Microsoft Login... (Please select the correct account)" -ForegroundColor Cyan

$RequiredScopes = @(
    "Application.ReadWrite.All", 
    "AppRoleAssignment.ReadWrite.All", 
    "Directory.Read.All", 
    "RoleManagement.Read.Directory"
)

try {
    # In v2, -ContextScope Process is the most reliable way to force account selection
    # and prevent the session from saving to the machine permanently.
    Connect-MgGraph -Scopes $RequiredScopes -ContextScope Process

    $Context = Get-MgContext
    if ($null -eq $Context) { throw "Login was cancelled or failed." }

    $UserPrincipal = $Context.Account
    Write-Host "Logged in as: $UserPrincipal" -ForegroundColor Green

    # --- ROLE VALIDATION ---
    Write-Host "Verifying Directory Roles..." -ForegroundColor Gray
    $UserRoles = Get-MgUserMemberOf -UserId $Context.Account -All | Where-Object { $_.AdditionalProperties.displayName -ne $null }
    
    $Authorized = $false
    $RequiredRoles = @("Global Administrator", "Privileged Role Administrator")

    foreach ($role in $UserRoles) {
        $roleName = $role.AdditionalProperties.displayName
        if ($roleName -in $RequiredRoles) {
            $Authorized = $true
            Write-Host "Access Granted: $roleName" -ForegroundColor Green
            break
        }
    }

    if (-not $Authorized) {
        Write-Host "`nCRITICAL ERROR: Insufficient Privileges." -ForegroundColor Red
        Write-Host "Account must be 'Global Administrator' or 'Privileged Role Administrator'." -ForegroundColor Yellow
        Disconnect-MgGraph
        Read-Host "`nPress Enter to exit"; exit
    }

} catch {
    Write-Error "Login failed: $_"
    Read-Host "Press Enter to exit"; exit
}

# --- USER INPUT ---
Write-Host "`n--- APPLICATION SETUP ---" -ForegroundColor Cyan
$InputName = Read-Host "Enter the name for your new Entra ID Application (Default: Workspace Migration App)"
$AppName = if ([string]::IsNullOrWhiteSpace($InputName)) { "Workspace Migration App" } else { $InputName }

# --- CONFIGURATION ---
# Updated Map containing all the requested application permissions
$PermissionMap = @{
    "calendars.read"              = "Calendars.Read"     
    "contacts.read"               = "Contacts.Read"
    "directory.read.all"          = "Directory.Read.All"
    "group-conversation.read.all" = "Group-Conversation.Read.All"
    "mail.read"                   = "Mail.Read"
    "mailboxfolder.read.all"      = "MailboxFolder.Read.All"
    "mailboxitem.export.all"      = "MailboxItem.Export.All"
    "mailboxitem.read.all"        = "MailboxItem.Read.All"
    "tasks.read.all"              = "Tasks.Read.All"
    "user.read.all"               = "User.Read.All"
}

$TenantId = $Context.TenantId
$GraphAppId = "00000003-0000-0000-c000-000000000000"

try {
    # --- STEP 1: REGISTER APPLICATION ---
    Write-Host "Creating Application: $AppName..." -ForegroundColor Cyan
    $Application = New-MgApplication -BodyParameter @{
        displayName = $AppName
        signInAudience = "AzureADMyOrg"
    }
    
    # --- STEP 2: PREPARE SERVICE PRINCIPAL ---
    $NewServicePrincipal = New-MgServicePrincipal -BodyParameter @{ appId = $Application.AppId }

    Write-Host "Waiting 10 seconds for replication..." -ForegroundColor DarkGray
    Start-Sleep -Seconds 10

    # --- STEP 3: CONFIGURE & GRANT PERMISSIONS ---
    Write-Host "Configuring API Permissions & Granting Admin Consent..." -ForegroundColor Cyan
    $GraphSP = Get-MgServicePrincipal -Filter "AppId eq '$GraphAppId'" | Select-Object -First 1
    
    $ResourceAccessList = @()

    foreach ($key in $PermissionMap.Keys) {
        $RealRoleName = $PermissionMap[$key]
        $Role = $GraphSP.AppRoles | Where-Object { $_.Value -eq $RealRoleName }

        if ($Role) {
            $ResourceAccessList += @{ id = $Role.Id; type = "Role" }

            New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $NewServicePrincipal.Id -BodyParameter @{
                principalId = $NewServicePrincipal.Id
                resourceId  = $GraphSP.Id
                appRoleId   = $Role.Id
            } | Out-Null
            Write-Host " - Granted: $RealRoleName" -ForegroundColor Gray
        }
    }

    Update-MgApplication -ApplicationId $Application.Id -RequiredResourceAccess @(@{
        resourceAppId  = $GraphAppId
        resourceAccess = $ResourceAccessList
    })

    # --- STEP 4: CREATE CLIENT SECRET ---
    Write-Host "Generating Client Secret..." -ForegroundColor Cyan
    $ExpiryDate = (Get-Date).AddYears(2).ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ")
    $PasswordCred = Add-MgApplicationPassword -ApplicationId $Application.Id -BodyParameter @{
        passwordCredential = @{
            displayName = "MigrationToolSecret"
            endDateTime = $ExpiryDate
        }
    }

    # --- OUTPUT ---
    Write-Host "`n-------------------------------------------------------" -ForegroundColor Yellow
    Write-Host "        SETUP COMPLETE - SAVE THESE DETAILS" -ForegroundColor Yellow
    Write-Host "-------------------------------------------------------" -ForegroundColor Yellow
    Write-Host "Application Name        : $AppName"
    Write-Host "Application (Client) ID : $($Application.AppId)"
    Write-Host "Client Secret Value     : $($PasswordCred.SecretText)"
    Write-Host "Directory (Tenant) ID   : $TenantId"
    Write-Warning "IMPORTANT: Copy the Client Secret Value immediately."

}
catch {
    Write-Error "Operation failed: $_"
}

# --- FINAL DISCONNECT ---
Disconnect-MgGraph
Read-Host "`nPress Enter to close this window"

    

3. Prendi nota delle seguenti credenziali e archiviale in modo sicuro. Se le credenziali vengono divulgate, gli hacker potrebbero accedere a tutti i tuoi dati di Exchange Online.
   • Client secret
   • ID applicazione (client)
   • ID directory (tenant)

Per motivi di sicurezza, ti consigliamo di registrare la nuova applicazione come single-tenant.

1. In qualità di amministratore, accedi al portale di Azure.
2. In Servizi Azure, vai a Registrazioni app.
3. Fai clic su Nuova registrazione e inserisci un nome per l'applicazione (ad esempio, App di importazione avanzata).
4. Per Tipi di account supportati, fai clic su Solo account in questa directory dell'organizzazione per creare un'applicazione single-tenant.
5. Fai clic su Register (Registrati).

Scegli una delle seguenti opzioni:

Opzione 1: aggiungi manualmente le autorizzazioni

1. A lato, in Gestione, fai clic su Autorizzazioni API.
2. Fai clic su Aggiungi un'autorizzazione API Microsoft Microsoft Graph.
3. Per le autorizzazioni dell'applicazione, seleziona:
   • Calendars.Read
   • Contacts.Read
   • Directory.Read.All
   • Group-Conversation.Read.All
   • Mail.Read
   • MailboxFolder.Read.All
   • MailboxItem.Export.All
   • MailboxItem.Read.All
   • Tasks.Read.All
   • User.Read.All
4. Fai clic su Concedi il consenso amministratore per la tua organizzazione.

Opzione 2: modifica il manifest dell'applicazione

1. Apri il manifest dell'applicazione.
2. Vai a "resourceAccess" : [ ] e scegli un'opzione:
   • Se "resourceAccess" : [ ] ha già un valore, aggiungi una virgola e poi incolla il seguente blocco di codice.
   • Se "resourceAccess" : [ ] non ha un valore, copia e incolla il seguente blocco di codice.

   { "id": "798ee544-9d2d-430c-a058-570e29e34338", "type": "Role" },

   { "id": "089fe4d0-434a-44c5-8827-41ba8a0b17f5", "type": "Role" },

   { "id": "7ab1d382-f21e-4acd-a863-ba3e13f7da61", "type": "Role" },

   { "id": "4f0a8235-6f6f-4ec7-9500-34b452a4a0c3", "type": "Role" },

   { "id": "810c84a8-4a9e-49e6-bf7d-12d183f40d01", "type": "Role" },

   { "id": "99280d24-a782-4793-93cc-0888549957f6", "type": "Role" },

   { "id": "937550e9-33a3-494b-88ae-d9cd394b1fbb", "type": "Role" },

   { "id": "7d9f353d-a7bd-4fbb-822a-26d5dd39a3ce", "type": "Role" },

   { "id": "f10e1f91-74ed-437f-a6fd-d6ae88e26c1f", "type": "Role" },

   { "id": "df021288-bdef-4463-88db-98f22de89214", "type": "Role" }

3. Fai clic su Concedi il consenso amministratore per la tua organizzazione.

1. Sul lato, in Gestione, fai clic su Certificati e secret Nuovo client secret.
2. Inserisci una descrizione, seleziona un periodo di scadenza e fai clic su Aggiungi.
3. Copia il valore del client secret e memorizzalo in modo sicuro. Il valore viene visualizzato una sola volta.

Importante: memorizza le credenziali dell'applicazione in modo sicuro. Se le credenziali vengono divulgate, gli hacker potrebbero accedere a tutti i tuoi dati di Exchange.

Fai clic su Panoramica e annota in modo sicuro le seguenti credenziali:

• ID applicazione (client)
• ID directory (tenant)