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Jattar74
Copper Contributor
Jun 17, 2020

I am trying to migrate the Outlook Online Auto-Complete Cache from one O365 tenant to a new one

At the moment I am migrating users from one O365 Tenant to a new one in a new domain. I have had the VP's complain about losing their auto-complete cache for Outlook. 
However I have yet to discover a tool, script, or even C# source code that allows this to happen.

 

Is there a way to do this?

 

Also, I am tasked with attempting to allow cross tenant sharing of resources, such as the address books and calendars. I realize there is a "Share with Outside Organizations" Feature, however I am looking for an automated way to do this at the admin level that does not require Users intervention as VP's are not very technical and they do not want to have to put effort into such tasks. 

 

Thank you in advance.

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