Office 365 Migration Headaches

I have been doing a lot of On-Premises Exchange to Office 365 migrations lately and each time I find new issues that can be very time consuming to research and resolve.

One issue I’ve had is when creating a new migration batch the mailbox I want to migrate is not listed.

The issue seems to be with Azure AD Connect synchronization and the on-premises Active Directory. If the account/user/mailbox has issues the replication to Azure AD gets horribly malformed.

Step 1 – remove the user from MS Online

Open PowerShell (elevated privileges) and connect to Msol-Services

Install-Module MSOnline

Connect-MsolService -Credential $Credential

Provide the tenant Global Admin credentials

At this point you might as well also load up AzureAD

Install-Module AzureAD -force

Set-ExecutionPolicy RemoteSigned

$Session = NewPSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $Credential -Authentication Basic -AllowRedirection

$Import-PSSession $Session

At this point your powershell has two sessions – one for AzureAD and one for MSOnline Services (Exchange Online)

By admin|2019-07-12T20:12:12-08:00July 12th, 2019|Microsoft Exchange, Microsoft Office 365|Comments Off

About the Author: admin

An IT Specialist with humble beginnings at an ISP here in BC in 1996. Since then WiReDWoLF has expanded his knowledge and expertise in many areas of the IT field and is proficient with networking, applications, servers, and general application of all of the above.