Exchange2013 Public Folders

Can I create a new public folder in Ex2013 before I migrate the old Public folders from 2007?  Will the uses that have not been migrated to 2013 have access to both?

We are in the migration of users process but I have a couple managers that need access to their public folders.
John HausknechtITAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
Can I create a new public folder in Ex2013 before I migrate the old Public folders from 2007?
To perform this command you will need to use the -HoldForMigration switch when creating the first public folder mailbox in Exchange 2013 with a co-existence legacy Exchange.

This needs to be in place so that users will not be able to add anymore public folders in Exchange 2007 or 2010.

Typically when you are going through this migration migrating public folders should be the absolute last thing you migrate. All of the mailboxes should be migrated prior to doing the public folder migration. Exchange 2013 mailboxes will connect to the old Exchange Public Folders but when you are setting Exchange Database Client settings it will only search for public folder databases within the current version of Exchange.

I just finished a 2010 to 2013 migration. The users went over fine. The public folders never did "Pass thru" to the 2010 server during this time. Once I got to the actual Public folder migration I had to try it 4 or 5 times over the week to finally get it to go. This article works but only when it is ready. Yea I know it sucks. I finally got the migration going and getting to the final stage  and it would never go past that. The I found a couple of posts that said if it gets to the mailbox locked error you have to just restart the server and let it go. It did finally work. But I never made it work with pass thru. I also found out that Public Folders that contain calendar or contact info can no longer be accessed by OWA users. Sorry a long post and almost answered your question. I believe you have to make the migration happen with no other public folders in place on the 2013 server. Then once it is done you can create a new one. If you try the migration with one in place I think a difficult process will be impossible.
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