Having trouble verifying remote routing address

Question

I am trying to via powershell ensure that ADFS replication was successful.
After i enable the remote mailbox and set the remote routing address on the hybrid servers, i need to find a way to query the msol service to ensure that replication was successful before i can set the E3 license to ensure proper account creation and mail
routing...
any help or ideas would be greatly appreciated
I am able to query and make sure the account exists using this command before setting remote routing..
                While ((Get-MsolUser -UserPrincipalName $mailusers).userprincipalname -eq $null) {
                    New-Sleep -s 300
                    Write-Progress -Activity "Dirsync" -Status "Waiting for Dirsync to Complete"
But have not been able to find a property anywhere to ensure the next replication...

Answer 1

I haven't tested this thoroughly, but in the past, I've looked at the event viewer on the dirsync server.
This is an excerpt from some working code I have:
#Run Dirsync
$StartTime = Get-Date
Import-Module DirSync
Start-OnlineCoexistenceSync -Verbose
## Part 4 ##
# License the mailbox in Office 365
#Wait for DirSync to Finish
While (
(Get-EventLog -LogName Application -Source "Directory Synchronization" -After $StartTime -InstanceId 114).count -eq '0'
write-host "DirSync isn't done yet. Waiting 15 more seconds..." -F Cyan
sleep 15
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