M365 email migration from google workspace - migration endpoint creation fails

Question

Hello,

I am attempting to migrate user mailboxes from Google Workspace to our M365 account.

I have been following this article and am on Step 5 of it: https://learn.microsoft.com/en-us/exchange/mailbox-migration/migrate-google-mail-automated-method

During batch creation, everything is going fine until I get to this step that is particularly unhelpful in the error.

Help is appreciated.

Answer 1

Hello, @Brian Brownton,

Welcome to the Microsoft Q&A platform!

Based on your description, you encountered an issue during the "Check endpoint setup status" step of your migration. This can happen for a few reasons. Here are some common troubleshooting steps:

1.Verify Prerequisites: Make sure that you have completed all the prerequisites listed in the migration guide, including enabling IMAP for your Google Workspace accounts and setting up the necessary permissions.

2.Test Migration Server Availability: Use the Test-MigrationServerAvailability cmdlet in Exchange Online PowerShell to check if the migration endpoint is correctly set up. Here's an example command:

Test-MigrationServerAvailability -Gmail -ServiceAccountKeyFileData $( [System.IO.File]::ReadAllBytes("C:\\path\\to\\your\\keyfile.json") ) -EmailAddress ******@yourdomain.com

This will help you identify if there are any connectivity issues between Microsoft 365 and Google Workspace.

3.Check App Passwords and 2FA: Make sure that 2-step verification is enabled for the Google Workspace accounts and that app passwords are generated and correctly entered in the migration CSV file.

4.Review Throttling Limits: Google Workspace has throttling limits that can affect the migration process. Ensure that you are not exceeding these limits.

Also, here is an official document on how to deal with error during mailbox migration and a similar issue for your reference:

1.Can't migrate Google Workspace mailboxes to Microsoft 365 - Exchange | Microsoft Learn

2.Gsuite to Microsoft 365 Migration - Error creating endpoint - Microsoft Community

Should you need more help on this, you can feel free to post back. 

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If the answer is helpful, please click on “Accept answer” as it could help other members of the Microsoft Q&A community who have similar questions and are looking for solutions.

Thank you for your support and understanding.

Best Wishes,

Alex Zhang

Answer 2

Hello,

For anybody else that encounters this:

I didn't change anything. I just waited and tried again -- doing everything exactly the same -- and it worked a day or two later.

Answer 3

Hello, @Brian Brownton,

Great to know that the issue has already been resolved and thanks for sharing the solution so that others experiencing the same thing can easily reference this!

Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others(https://docs.microsoft.com/en-us/answers/support/accepted-answers#why-only-one-accepted-answer)", I'll repost your solution in case you'd like to "Accept (https://learn.microsoft.com/en-us/answers/support/accept-answer#accepted-answer-in-a-question-thread)" the answer).     

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Issue Symptom:

The author encountered an issue during the "Check endpoint setup status" step of your migration.

Resolution:

Keep waiting and do not need to change anything, just wait and try again.

Do everything exactly the same and it will work a day or two later.

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Hope you can consider accepting the answer as it could help other members of the Microsoft Q&A community who have similar questions and are looking for solutions to find this case mor easily.

Thank you for helping to improve Microsoft Q&A!

Best Wishes,

Alex Zhang