AD Connect query

[jonbd]

I'm currently going through the process of setting up Azure AD Connect for SSO on prem and have set up the connect software in staging mode on a test OU with a few test users in, some of which have corresponding accounts in Office 365. I've matched the UPN suffix and Email attributes in AD to the correct office 365 domain, but how do I know if the users in AD are matching up to the correct existing users in Office 365? There are no errors in the Synchronization service software, but I can't tell from the info in there if it's going to create new users in Office 365 or match them up to their Office 365 counterparts. Is taking it out of staging mode the only way to see if it's matched them up correctly, or is there something I can check on the AD Connect server to verify before I flick the switch?

[HPlum78]

csexport "Name of Connector" %temp%\export.xml /f:x

 

Run that from the bin folder where aad connect is installed. Then you can analyse the output using the following

 

CSExportAnalyzer %temp%\export.xml > %temp%\export.csv

[HPlum78]

https://docs.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-sync-staging-server#verify

 

In fact rather than me pick out the bits from my docs take a look at the above.