School Merger and Office365 migration

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Hi All,

 

I wonder if anyone can shed any light on this for me (please!).

 

We have just merged schools and I now have the lovely task of merging the networks. My school (SchoolA) is half way through a staged migration using DIRSync, I plan to finish this migration before starting any other.

The other school (SchoolB) is on prem Exc 2007, with totally different domain name. I have added the domain to SchoolA's 365 account and plan to do a cutover migration shortly after the staged is finished.

Once the cutover has taken place, both domains are migrating to a brand new domain which I then want to DIRSync again with the cloud having given all mailboxes a new default email address and link it all back up!

 

Can I do this? I understand that I will have to disable sync a couple of days before this takes place. Is that it though? What process should I take to do this??

 

Many thanks for any response!

 

Chris