To Do changes for on-premises mailbox users
Since I don't see this having been announced in the To Do blog or in the Microsoft 365 Message Center, I'm sharing this here. ------------------------------------------------------------ https://support.microsoft.com/en-gb/office/changes-to-microsoft-to-do-access-for-on-premises-mailbox-accounts-f0cb4131-c8c0-4c80-a4df-b75482f62be1?ui=en-US Changes to Microsoft To Do access for on-premises mailbox accounts Starting January 22nd, 2021, anyone who uses To Do or the Tasks app in Teams with an on-premises mailbox will only be able to sign in to To Do on the web. You won’t be able to sign in to To Do on Android, iOS, Mac, or Windows. In To Do on the web, you’ll be able to view your lists and tasks, but anything you edit or add won’t be saved and will be lost once you sign out. Starting February 22nd, 2021, anyone with an on-premises mailbox won’t be able to sign in to To Do on any platform. Make sure to back up your To Do data before then by printing your lists or saving them as PDFs. Once your organization has moved your mailbox to the cloud, you’ll be able to sign in to To Do and manually reenter the information you saved. How moving mailboxes from on-premises to Exchange Online affects your To Do data Microsoft To Do needs an Exchange Online mailbox to store and sync your tasks, which means on-premises mailboxes need to be moved to Exchange Online. If you use To Do or the Tasks app in Teams with an on-premises mailbox, you’ll lose your To Do data when your on-premises mailbox is moved to Exchange Online. To prepare for that, make sure to either print your lists or save them as PDFs so you can manually recreate them in To Do. For IT admins at companies with on-premises mailboxes When you tell employees you’ll be migrating their on-premises mailboxes to Exchange Online, remind anyone who uses Microsoft To Do to print their lists or save them as PDFs. People who use the Tasks app in Teams will need to download To Do so they can print or save their lists. Once you've migrated their mailboxes to Exchange Online, employees will need to manually reenter their saved list information in To Do. For other employees at companies with on-premises mailboxes If you use Microsoft To Do or the Tasks app in Teams, your To Do lists and tasks may be lost when your organization migrates its mailboxes from on-premises to Exchange Online. As a precaution, print your To Do lists or save them as PDFs. Once your mailbox has been migrated to Exchange Online, you can manually reenter the information you saved. For more info, talk to your IT admin. ------------------------------------------------------------ I work for a Microsoft partner, am currently working on an EXO migration engagement with a customer, and a VIP user just lost all of their To Do Lists/Tasks upon being migrated to EXO. I hadn't seen the KB article previously, and don't remember seeing anything come through in my Message Center notifications. When I search the M365 Message Center today, I see nothing about this.
