Google Workspace Migration

Alternatives to the Deprecated Exchange Application Impersonation Role for Migration

Maira Mehtab Sep 22, 2026 869 views

Question details

The user needs to find a supported alternative to the deprecated Exchange Application Impersonation role for conducting migrations using BitTitan MigrationWiz.

Product: BitTitan MigrationWiz / Microsoft Entra ID
Device & OS: not provided
Scenario: Configuring authentication for a Google Drive-to-OneDrive migration via BitTitan MigrationWiz.
Observed behavior: The formerly required Exchange Application Impersonation role is being deprecated, necessitating a transition to a modern authentication standard.

Before you start

Ensure you have Global Administrator access to your Microsoft 365 tenant and the Microsoft Entra admin center to register new applications.

Solution 1Recommended

Transition to Microsoft Identity Platform and OAuth

Replace the deprecated Application Impersonation role by registering a new application in Microsoft Entra ID and configuring OAuth authentication.

While existing service accounts utilizing Application Impersonation may continue to function temporarily, Microsoft strongly advises migrating to the modern Microsoft identity platform.

BitTitan MigrationWiz fully supports OAuth authentication, which provides a more secure, granular, and robust authorization method for executing tenant migrations.

Access Microsoft Entra ID

Register a new application

Navigate to 'App registrations' from the left sidebar and click 'New registration' to create a dedicated application for BitTitan MigrationWiz.

Configure OAuth settings

Set up the application's OAuth credentials, including client IDs and client secrets, as required by the MigrationWiz setup documentation.

Grant required permissions

Assign the necessary Microsoft Graph API permissions (such as Sites.ReadWrite.All or Files.ReadWrite.All) to the registered application and grant admin consent.

Verify with BitTitan Support

Contact BitTitan support to confirm the exact permission scopes and tool-specific setup required for your specific Google Drive-to-OneDrive migration scenario.

Consult Documentation: Because specific API permission requirements can update frequently, always verify the latest required OAuth scopes with BitTitan support before initiating the migration.

Free Microsoft Office alternative

Looking for a Lightweight Alternative to Microsoft 365?

While navigating complex tenant migrations and deprecated Exchange roles, you might be seeking simpler alternatives for your team's daily productivity. WPS Office offers a free, lightweight, and highly compatible alternative to Microsoft Office, saving you from complex administration while keeping your workflow smooth.

1. Download the installer: Visit the official WPS Office website and download the free installer for your operating system.
2. Install the software: Run the setup file and follow the straightforward on-screen instructions to install the suite.
3. Open and edit files: Launch WPS Office and immediately start opening, editing, and saving your existing Microsoft Office documents.

Free and lightweight office suite with easy centralized deploymentExcellent compatibility with Microsoft Word, Excel, and PowerPoint formatsAll-in-one tabbed interface for streamlined document managementFamiliar UI that minimizes training time for newly migrated users

microsoft office alternative - wps office

Frequently Asked Questions

Can I still use my existing service accounts with Application Impersonation?

Existing service accounts configured with Application Impersonation may continue to work temporarily during the deprecation phase, but it is highly recommended to transition to OAuth as soon as possible to avoid disruption.

What is the Microsoft identity platform?

The Microsoft identity platform is an authentication service that allows developers to build secure applications using industry-standard protocols like OAuth 2.0, replacing legacy authentication methods.

Where do I register the application for OAuth?

You need to register the new application within the Microsoft Entra ID (formerly Azure Active Directory) admin center under the 'App registrations' section.

Does BitTitan MigrationWiz support modern authentication?

Yes, BitTitan MigrationWiz fully supports modern authentication via OAuth, which is the required standard when transitioning away from the deprecated Application Impersonation role.

Migration & Recovery