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Google Workspace Migration

How to Fix Microsoft 365 Migration Fails When Google Workspace Service Key Is Missing

Maira MehtabMaira Mehtab Sep 22, 2026 869 views

Question details

The user needs to resolve a failure during an automated Microsoft 365 migration from Google Workspace where the required service-key JSON file is not generated.

Product
Microsoft 365
Device & OS
not provided
Scenario
Setting up an automated migration from Google Workspace to Microsoft 365.
Observed behavior
The migration setup completes without producing the required service-key JSON file, causing an unexplained X error in the subsequent step.
Before you start

Verify that you are logged in with Global Administrator privileges in your Microsoft 365 tenant and Super Admin privileges in Google Workspace before troubleshooting migration endpoint connections.

Solution 1Recommended

Seek Specialized Support on Microsoft Q&A

Because this issue involves backend key generation failures and specific Microsoft 365 tenant permissions, consulting Microsoft experts is the most effective approach.

Migrating from Google Workspace relies heavily on properly configured service accounts, API permissions, and JSON key files. If the automated setup fails to generate this key, manual intervention in the Google Cloud Console or specialized Microsoft support is required to identify the missing permissions and resolve the undocumented 'X' error.

1
Gather Error Details

Note the exact step in the migration wizard where the setup failed and take a screenshot of the unexplained 'X' error.

2
Visit Microsoft Q&A

Navigate to the official Microsoft Q&A platform and log in using your Microsoft 365 administrator account.

3
Post the Migration Issue

Create a new thread detailing the missing Google Workspace service-key JSON file, key-generation settings, and the exact error prompt so Microsoft migration experts can investigate your tenant's issue.

Include Migration Logs: If you have access to any generated migration logs in the Exchange admin center, mention them in your support request to help expedite the troubleshooting process.
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Frequently Asked Questions

Why is the Google Workspace service-key JSON file missing during migration?

This usually happens if the automated migration setup lacked the correct permissions in Google Cloud Console to create a service account and automatically generate the required JSON key file.

Can I manually create the service-key JSON file for Microsoft 365 migration?

Yes, you can manually navigate to the Google Cloud Console, create a service account with the required API scopes (such as Gmail, Calendar, and Contacts), generate a JSON key, and upload it to the Microsoft 365 Exchange admin center.

What does the unexplained X error mean in the Microsoft 365 migration wizard?

The generic 'X' error typically indicates a failure to authenticate or establish a connection with the Google Workspace environment, which is directly caused by the missing or invalid JSON service key.

Do I need special admin roles to migrate from Google Workspace to Microsoft 365?

Yes, you must be a Global Administrator or Exchange Administrator in Microsoft 365, and hold Super Admin privileges in Google Workspace to successfully configure the migration endpoints and create service accounts.