While we realize that many BPOS customers are eager to move onto the new Office 365 service and start using all the new features, we strongly recommend that you wait until we are ready to transition your tenant for you. We have received a number of Support calls from customers and partners who have tried to migrate their data from BPOS to Office 365 by themselves. Please be aware that if you attempt a manual migration, emails sent to your domains will be returned to sender as undeliverable until Support can delete your domain from BPOS and you can re-create in Office 365. This email outage could last as long as 24 hours (possibly longer if many customers are asking Support to delete their domains at the same time as you). What should someone do who is eager to move from BPOS to Office 365? Ideally, you would wait to be transitioned by the Office 365 team. However, if you are an expert in Exchange server migrations, comfortable with PowerShell scripts, and just can’t wait a couple of months, here’s what you need to do. (Please note that manual migration is not supported, manual migration will stop mail flow for at least 24 hours, and customers with Exchange Hosted Archiving will lose all archived data). Ensure all of your computers meet the Office 365 system requirements. Sign up for an Office 365 account. Do NOT add any other domains at this point Run the Office 365 online desktop setup tool on all desktop PCs. Back up all of your users’ mail to .pst files using Outlook. Remove all vanity domain information from BPOS. Remove all production domain e-mail addresses from any accounts using them. Here's an example. Your production domain is contoso.com. You have a user, Joe, with the e-mail addresses Joe@contoso.microsoftonline.com and Joe@contoso.com. Remove the Joe@contoso.com e-mail address, as well as any other e-mail addresses in the system that end with contoso.com. Remove your production domain from BPOS. Contact BPOS Support, and Tell them you wish to have your production domain removed from FOPE. Ask them to check in the Office 365 environment to see if Microsoft has already copied your domain(s) and users to a pre-transition tenant. If this has happened, your domain(s) will need to be removed from Office 365 as well Wait 1 day for Support to remove your domains. You will receive no inbound email for this period. Sign in to your Office 365 admin account and add your production domain to Office 365. Add your users to Office 365. Import the .pst files you made in step 3 into the appropriate user mailboxes using Outlook. There will be a feature allowing domains to be deleted in FOPE without a call to Support, but it will take some time before this option is available. Please keep an eye on this blog for further updates. Final note: I have personally seen some creative workarounds in the BPOS community to the email outage that inevitably occurs while FOPE is deleting your domain. They’re not perfect, and Microsoft doesn’t support them (nor have we tested them).
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Manual Migration from BPOS to Office 365
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