Use a Service User instead of Direct Sign in (Office 365)

Updated April 1, 2026

Use a single service-user account to access your displays, instead of directly signing into each display.

For larger deployments, or in some environments, it may make more sense to use a single service-user account to provide Meeting Room 365 access to your meeting room displays, as opposed to signing in to each account individually.

This guide will cover the steps to setting up a new display, connected to Office 365, via a Service User Account.

Sign in to Meeting Room 365

You can sign in via any method. You do not have to sign in to Meeting Room 365 as the service user.

Select "Add Office 365 Meeting Room Display"

Move to the second step

Click "Add a New Service Account"

Select your Service User

You will be redirected back to Meeting Room 365

Select Autodiscover displays

Note: Your service account needs read/write access to your resource mailbox. The fastest way (but not the only way) to do this is to add your service account as a delegate on your resource mailbox. See below for more details on How to Add a Delegate in Microsoft 365.

Add your Displays

Add each display by clicking "Create Display".

If you do not yet see your displays, your service user will need to be assigned an admin role which allows listing of resource mailboxes.

Display Provisioned

Your displays are provisioned & ready to use.

You can test it out by visiting https://app.meetingroom365.com/ and entering your display key.

Thanks for reading! Please reach out to support if you run into any issues during initial setup or provisioning.


Addendum: How to Add a Delegate in Microsoft 365

The easy way to add your meeting room displays to Meeting Room 365 in bulk: just add any service user as a full delegate in https://admin.microsoft.com

Click "Show More" and then "Resources" and "Rooms and Equipment" to get to your list of meeting room resources:

https://admin.cloud.microsoft/?#/ResourceMailbox

Click on the name of the resource you wish to edit.

Under Delegates click Edit. Then add your service user and click Save.

That's it! Repeat for each of your resource mailboxes, and you should be able to autodiscover and bulk add your meeting room displays in Meeting Room 365 by selecting "Use a Service User" during setup.