I’m a big fan of Microsoft To-Do but recently noticed that I was having trouble syncing data from my Windows 10 desktop to my other devices. Everything looked fine on my desktop but the next troubleshooting step I took revealed my problem as you can see below.
A Windows Information Protection (WIP) policy is preventing the use of Microsoft To Do on this device.
Ah ha, I had indeed recently changed my Windows Information Protection (WIP) policy for the desktop. This change had inadvertently stopped Microsoft To Do syncing as well as preventing me from logging in.
To solve the problem you need to add the Microsoft To Do app to the list of Protected apps in the Intune App Protection policy for the device, which by default, isn’t there.
Navigate to the Intune App Protection policy in question and view the properties as shown above. On the right hand side, select the Edit link next to Targeted apps as shown.
You should then see the Targeted apps as shown above.
Scroll to the bottom of the list of Protected Apps and select the +Add link at the bottom as shown.
This process is similar to one I documented a while back for Adobe Acrobat:
Adding Acrobat as an allowed app
The difference this time is that Microsoft To Do is a store app.
To identify the app you need to search for the store app on the Microsoft Store as shown above. When you locate the app and view the URL you will see a unique identifier as shown. In this case, for Microsoft To Do, it is 9NBLGGH5R558.
You’ll then need to visit this URL:
Doing so will spit out the information you need to add the app as a protected app to your policy. To view the result for other store apps just insert the appropriate identifier into the URL instead of the one for Microsoft To Do shown here.
Thus, for Microsoft To Do you’ll need:
“publisherCertificateName”: “CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US”
Back on the Add apps page opened earlier, change the pull down at the top of the page to be Store apps. Then enter the information for Name, Publisher and product name as:
Name = Microsoft To Do
Publisher = CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Product name = Microsoft.Todos
Select OK at the bottom of the dialog to save the changes. Then select Review+Save to update the policy.
You can either wait for the policy to be pushed down or force a sync from the device sync settings in the user account information for the Windows device. Once the policy has been updated to the machine you’ll be able to open and use Microsoft To Do or any store app you have configured. Doing so fixed my Microsoft To Do issue by allowing me to login to the app again on the desktop and sync information.