Exchange Migration 2007 to 2013

I am migrating exchange 2007 from SBS2008 to exchange 2013 on server 2012.  As per the TN exchange server deployment assistant, prerequisite for ex 2007 is to update it to sp3 with ru 13.  My exchange 2007 has a ru 15.  Can this cause an issue with migration to exchange 2013. What CU should I install for exchange 2013.

Thank You

Joe JohnsonAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

AmitIT ArchitectCommented:
Ru 13 is minimum required, if you are above ru 13 that's much better.  So you don't need to roll back to ru13. Use ru15.
The minimum requirement is Update Rollup 10 for Exchange 2007 Service Pack 3 (SP3).  You have RU13 so you can go ahead with the migration.
You should install the latest Exchange 2013 CU8.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.