This template produces a Microsoft 365 tenant assessment that provides information about your Microsoft 365 tenant environment such as mailboxes, OneDrive For Business, SharePoint Online, Microsoft Teams, Public Folders, as well as other additional tenant objects that will give a clear analysis of your current tenant. It also allows you to estimate the number of MigrationWiz licenses needed and the estimated licensing cost to migrate.
This is especially useful in the following use cases:
Microsoft 365 tenant to tenant pre-migration assessment providing information about the source tenant.
Microsoft 365 tenant to tenant post-migration assessment providing information about the destination tenant once the migration has been completed to compare both source and destination objects.
General purpose Office tenant assessment.
How it works
This template will retrieve data across Microsoft 365 to generate a report detailing information about all these tenant objects and their more relevant attributes in the context of a tenant-to-tenant migration:
Domains added to the Microsoft 365 tenant
Mailboxes including:
User Mailboxes
Non-user mailboxes
Archive mailboxes
Inactive Mailboxes
On hold mailboxes
Microsoft 365 licenses and licenses applied to users.
Mailbox permissions:
FullAccess
SendAs
SendOnBehalfOf
Non-mailbox users:
Unlicensed users
Guest users
Organizational contacts
Distribution groups and dynamic distribution groups
Security groups and mail-enabled security groups
SharePoint Online security groups
OneDrive For Business accounts
Classic SharePoint Online sites
Microsoft 365 unified groups
Microsoft Teams
Microsoft 365 Public Folders
Microsoft 365 tenant settings like role memberships
BitTitan licenses required to migrate all objects above using BitTitan MigrationWiz
Requirements
To run this report, you will require an Azure account with the rights to
Create an application registration
Assign admin-consent application permissions
The inbuilt Global Administrator role has these rights enabled
The App Registration created by Voleer will be assigned the following permissions:
Azure Active Directory Graph
Read directory data
Microsoft Graph
Read all groups
Read all users’ full profiles
Read items in all site collections
Read all files that user can access
Maintain access to data you have given it access to
Read directory data
Getting Started
Launch the Microsoft 365 Tenant Migration Assessment template from the library by following these instructions:
Once you have completed the authentication steps, you will be prompted to select the domains and the individual components of the assessment that you want. Complete the form and then click Submit
Can we look to add to the UserMailboxes, NonUserMailboxes, UserMailboxesLargerthan50, NonUserMailboxesLargerThan50 the following attributes of Firstname and LastName.
The Display name attribute is ok but when looking to do migrations tenant to tenant, we are looking to leverage this data assessment to bulk create either contacts or AD objects. Display name is not always a logical split on space for first name last name. Having these as defined fields allows for better data usage and reporting.
Yes, that is correct add firstname and lastname to reports. This allows us to customize the Displayname when on boarding users as we can use firstname and lastname combinations and cultures using family names are not impacted by trying to split the display name.
thank you for the clarity. We are determining the best path forward to support this and other types of data points not made available thru the existing scripts, while balancing the performance/scalability of the assessments for larger organizations. More to come…
When running a Microsoft 365 Tenant Migration Assessment. How long would it take to complete. I start mine today a 8:46 am and some data appeared at 1:46 pm however it almost 6:00 PM and the assessment has not completed.
Thank you for posting. The amount of time can vary depending on the complexity of the M365 tenant being assessed. If you made it past the initial authentication setup steps, there may be other factors prohibiting the template to complete. I am seeing other successful executions of that template and tested the template myself prior to this post.
I will send you a meeting request so we can connect and trouble shoot.
My past Tenant Migration Assessment 2 weeks ago completed in about 10 hours. However, today’s runs are taking far longer. For example the get mailbox details are running about 1 mailbox per minute based on the status every 10 min. We have a migration scheduled soon and we are using these reports to execute tasks. Please respond soon with guidance to speed up the process.
January 13, 2022, 09:19:32 PM
Processed 715 (10.12%) of 7067 total mailboxes.
January 13, 2022, 09:09:15 PM
Processed 706 (9.99%) of 7067 total mailboxes.
January 13, 2022, 08:58:56 PM
Processed 697 (9.86%) of 7067 total mailboxes.
I’ve run this previously in another tenant without issue.
“Enter code
Enter the code displayed on your app or device.
That code didn’t work. Check the code and try again.”
What can be done to troubleshoot when the 2nd Authorisation request is not accepted by Microsoft please ?
I.e. the first (device auth?) succeeds and progresses onto #2 but this code is not accepted by M365
Things I have tried :
Remove the Voleer enterprise app that has appeared and start again
Run it in a new workspace
Type the code manually and/or cut’n’paste
Waited 10 minutes and try again
Dear support, I´m tryng to Launch this assessment, but it never starts. It´s being runing for about 12h and its on the 1st step. I have created a new one, with a new workspace but It does not works:
Error Connecting to Exchange Online after 5 retries. Connecting to remote server outlook.office365.com failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.
Getting the above error each time I try to run assessment except for existing ones. Please help
After registering and trying to run the Voleer assessment tool… the Library gives following message: An error occurred A few weeks ago the tool worked just fine, but not anymore.
Tried to register with different accounts, <.voleer.io> domains and different browsers and OS (PS version 2 vs 3…) Same error!?
Is there something wrong with the Voleer tool or am I doing something wrong?
Thanks for this awesome article to make the process simpler. I found it very helpful. Can I also used to Transfer Office 365 Mailbox to Another Account ? Because I need to migrate all the connected Office 365 accounts to another account for the business compliances.
