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Issues migrating from Exchange 2013 to Google Mail and Calendar

Posted on 2016-11-08
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Last Modified: 2016-11-26
Hi all,

We are in the process of migrating from our in-house Exchange 2013 server to Google Mail and Calendar.  I've tried using 2 separate methods to do a test migration and neither is working.

The Google Apps Migration for Microsoft Exchange (GAMME) tool fails with an error message "Rerun migration.  The GAMME retry limit is 10, but if the server was either heavily loaded or unreachable it will eventually exit.  Admin must re-run the job to migrate pending emails." Super helpful message I know.  I've also tried using the Data Migration Tool that is part of G Suite (the new brand name for Google Apps) and get the error "Authentication error. The username or password you entered is incorrect. Please verify."

Anyone run into this issue with a migration?  How did you get it resolved?

Thanks!
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Question by:SAndrewsLGBT
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13 Comments
 
LVL 14

Expert Comment

by:Allen Falcon
ID: 41880701
It sounds like you have an authentication issue.  Are you using a super-admin account for your G Suite account to run the migration tool?   Do you have domain admin access to your Exchange server?  Did you install the migration tool as an administrator?
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Author Comment

by:SAndrewsLGBT
ID: 41880724
Hi Allen,

I'm using my account to run the tool (I'm a G Suite super admin).  I have domain admin access to all of our servers.  The tool was installed as an admin.  This is why I'm baffled.  Google support has not been able to determine what is causing the issue :-(
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LVL 14

Expert Comment

by:Allen Falcon
ID: 41880732
What version of G Suite (Google Apps)?
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Author Comment

by:SAndrewsLGBT
ID: 41880743
I'm using the current version that's on their website - 5.0.30.10
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LVL 37

Expert Comment

by:Jian An Lim
ID: 41881530
I will usually use a 3rd party tool that have better documentation.

https://community.bittitan.com/kb/Pages/Hosted%20Exchange%20to%20Google%20Apps%20Migration%20Guide.aspx
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LVL 14

Expert Comment

by:Allen Falcon
ID: 41882253
I spoke with my ops team.  You will likely need to uninstall and rebuild the GAMME/GSMME installation. They recommend rebooting the install system/server as well.

We normally use a 3rd party tool, Cloud Migrator, for migrations for several reasons.  In addition to better documentation, the workflow is much more efficient and doesn't require as many sweeps to get all data moved over.
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Author Comment

by:SAndrewsLGBT
ID: 41882262
Thanks Allen!  Will try reinstalling the GAMME and see if the issue goes away.  I work for a non-profit so the pricing for Cloud Migrator may not be in our budget but I'll see if i can request funding for it.
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LVL 14

Expert Comment

by:Allen Falcon
ID: 41882268
With respect to cost, let me know if you want to go this route.  I cannot promote or sell things in this forum, but as a partner we can ask for special pricing on your behalf.  Feel free contact me through our website if you need additional assistance.
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LVL 37

Expert Comment

by:Jian An Lim
ID: 41882995
why not utilise Office 365 which is also FREE for non-profit organisation?
it will just make the user experience and migration a lot easier.
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Author Comment

by:SAndrewsLGBT
ID: 41883012
Hi Jian An Lim.  We were given G Suite for free from Google and that's what management wants to use.
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LVL 37

Expert Comment

by:Jian An Lim
ID: 41883020
I rest my case. Management always like to make decision without consulting the technical team.
I pretty sure Microsoft will give you free as well on your non-for-profit status but don't argue over things that can't change :)


For cloud migrator, definitely hit up because I am pretty sure you would have some heavily discounted licence to do some migration.
else, you can tell the management where the google apps is free, the cloud migrator is not. See how their response :)
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Accepted Solution

by:
SAndrewsLGBT earned 0 total points
ID: 41896446
Issue resolved.  Instead of using the option to directly connect to our Exchange server we had to use the option to use an Outlook profile to migrate.  Logged on to the computer as the migration account and made sure Outlook was configured in online mode (cannot use Cached Exchange mode for this).  Then ran the GAMME tool using the option for Outlook profile and the migration is underway.
1
 

Author Closing Comment

by:SAndrewsLGBT
ID: 41902210
Kept researching the cryptic error codes we were coming across in the logs.  Google's Support team was not able to assist me with this either.
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