Configura la aplicación de Azure para una migración avanzada

1. Como administrador, accede al portal de Azure.
2. Haz clic en Cloud ShellPowerShell.
3. Si se te solicita, crea una cuenta de almacenamiento y acepta la configuración predeterminada.
4. Para crear la aplicación, ingresa el siguiente comando y, luego, haz clic en Intro:

   Install-Module Microsoft.Graph -Scope CurrentUser

5. Si ves un mensaje para instalar desde un repositorio no confiable, ingresa Y y, luego, haz clic en Intro.
6. Copia el siguiente bloque de código, pégalo en PowerShell y haz clic en Intro.

       <#
       .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 ---
       $PermissionMap = @{
       "calendar.read"  = "Calendars.Read"     
       "mail.read"      = "Mail.Read"
       "contacts.read"  = "Contacts.Read"
       "directory.read" = "Directory.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. Anota las siguientes credenciales y almacénalas de forma segura. Si se filtran las credenciales, los hackers podrían acceder a todos tus datos de Exchange Online.
   • Secreto del cliente
   • ID de app (cliente)
   • ID del directorio (inquilino)

1. En Windows, crea un archivo de texto sin formato nuevo y asígnale el nombre migration_app_creator.ps1.
2. Copia el siguiente bloque de código, pégalo en el archivo nuevo y haz clic en Ejecutar 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 ---
    $PermissionMap = @{
    "calendar.read"  = "Calendars.Read"     
    "mail.read"      = "Mail.Read"
    "contacts.read"  = "Contacts.Read"
    "directory.read" = "Directory.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"
    

Por motivos de seguridad, te recomendamos que registres la nueva aplicación como un solo arrendatario.

1. Como administrador, accede al portal de Azure.
2. En Azure Active Directory (Azure AD), ve a Registros de aplicaciones.
3. Haz clic en New Registration y, luego, ingresa un nombre para tu aplicación (por ejemplo, Advanced migration app).
4. En Tipos de cuentas compatibles, haz clic en Cuentas solo en este directorio de la organización para crear una aplicación de un solo arrendatario.
5. Haz clic en Register.

Elige una de las siguientes opciones:

Opción 1: Agrega permisos de forma manual

1. En el lateral, en Administrar, haz clic en Permisos de API.
2. Haz clic en Agregar un permisoAPIs de MicrosoftMicrosoft Graph.
3. En permisos de aplicación, selecciona lo siguiente:
   • calendars.read
   • mail.read
   • contacts.read
   • Directory.read.all
4. Haz clic en Grant admin consent for your organization.

Opción 2: Edita el manifiesto de la aplicación

1. Abre el manifiesto de la aplicación.
2. Ve a “resourceAccess” : [ ]y elige una opción:
   • Si “resourceAccess” : [ ] ya tiene un valor, agrega una coma y, luego, pega el siguiente bloque de código.
   • Si “resourceAccess” : [ ] no tiene un valor, copia y pega el siguiente bloque de código.

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

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

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

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

3. Haz clic en Grant admin consent for your organization.

1. En el menú lateral, en Administrar, haz clic en Certificados y secretosNuevo secreto del cliente.
2. Ingresa una descripción, selecciona un período de vencimiento y haz clic en Agregar.
3. Copia el valor del secreto del cliente y guárdalo de forma segura. El valor se muestra solo una vez.

Importante: Almacena las credenciales de la aplicación de forma segura. Si se filtran las credenciales, los hackers podrían acceder a todos tus datos de Exchange.

Haz clic en Descripción general y anota de forma segura las siguientes credenciales:

• ID de app (cliente)
• ID del directorio (inquilino)