Move a domain and its users from one Google Apps account to another

Question

I've two Google Apps accounts which look like this:

Google Apps Account A:

  sam@alpha.com  
 info@alpha.com  
 test@alpha.com  
  news@beta.com (primary domain)  
   you@beta.com (primary domain)

Google Apps Account B:

john@xray.com (primary domain)

I'd like to move all the alpha.com users to Google Apps Account B so the setup would now look like this:

Google Apps Account A:

news@beta.com (primary domain)
 you@beta.com (primary domain)

Google Apps Account B:

 sam@alpha.com
info@alpha.com
test@alpha.com
 john@xray.com (primary domain)

Any ideas on the best way to do this?

Essentially these accounts are only being used for email (I'm not using the Drive, Calendar or other services) so if there's a way of easily migrating just the emails and the domain users that would work.

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UPDATE - 23 Sept 17 As of Nov 16 Backupify's Migrator app has closed down, so I'm now looking for an alternative workflow to migrate the data / email accounts.

Answer 1

Migrator for Google Apps may just solve your problem. However after the first free migration, it costs $15/migration.

https://www.migrationapp.com/

Migrator's overview and FAQ can be found at:

https://migrationapp.zendesk.com/hc/en-us