Migrate Dynamics CRM Organization

There are lots of scenario to migrate Dynamics CRM Organization, this post is quite useful http://kbalertz.com/952934/Microsoft-Dynamics-deployment.aspx. The import organization tool provided by Microsoft, actually change the original SQL database instead of duplicating it, especially in systemuser table. If the _MSCRM database didn't duplicate, the old CRM will not be accessible after the importing because all the systemuser GUIDs mismatch. Even following the instruction from the post, the CRM will not be accessible with error message. Check the security permission of _MSCRM database, make sure the CRM service account has owner permission of this migrated database. Then the migration will be successful.