How to Sync Your Ninety To-Dos with Microsoft To Do, Outlook, and Planner

The Microsoft To-Dos integration connects your Ninety To-Dos to your Microsoft task account. Once enabled, any To-Do assigned to you in Ninety automatically appears in Microsoft To Do, where it becomes visible in Outlook and Planner as well. The integration is available to all licensed users (Owners, Admins, Managers, Coaches, and Team Members) on Essentials, Accelerate, and Thrive plans. 

Each user sets up and manages their own connection; Owners and Admins cannot activate or configure it for others.

What this integration does

The Microsoft To-Dos integration lets you manage your Ninety To-Dos from within Microsoft's task ecosystem without duplicating work. Ninety acts as the source of truth for task creation. All To-Dos must be created in Ninety first. Microsoft To Do is where those tasks become visible and manageable across Outlook, Planner, and Microsoft Teams.

This integration is built for individuals who already use Microsoft tools throughout the day and want their Ninety commitments to appear where they are, without requiring a separate login to check their task list.

What syncs and what doesn't

Understanding the sync direction will save you troubleshooting time. The integration is not a full two-way sync — it is a one-way creation flow with limited reverse updates.

Microsoft Planner and Outlook

There is no separate Planner or Outlook toggle to configure. When you set up the Microsoft To-Dos integration, your tasks automatically become visible in Planner and Outlook through the Microsoft To Do ecosystem — no additional setup is required.

A few things to know about how this works across Microsoft's apps:

• Outlook: Your synced Ninety To-Dos appear in the Outlook task sidebar (accessible via the My Day panel on the web). They do not appear as calendar events — they are tasks, not appointments. If you want to add a Ninety-scheduled meeting to your Outlook calendar, see Scheduling Meetings for instructions on the calendar invite integration, which is a separate feature.
• Planner: Your tasks become accessible through Microsoft Teams via the Tasks by Planner and To Do app. This is a Microsoft-side view — it is not a separate Ninety integration.
• Choosing a specific Planner plan: You cannot choose which Planner plan your To-Dos sync to. The integration connects to your Microsoft To Do task list, and Planner access flows from there automatically.

Setting up the integration

Each user sets up their own Microsoft integration from their individual User Settings. Setup takes about two minutes.

1. Click your name at the bottom of the left navigation in Ninety.
2. Click User Settings.
3. Click Integrations from the left side of the settings page.
4. Click the Microsoft tab.
5. Toggle Microsoft To Do on.
6. Sign in with your Microsoft account when prompted to authorize the connection.
7. Select your preferred task list from the dropdown — typically Tasks or My To-Do — and confirm.

Once connected, your assigned Ninety To-Dos begin syncing to Microsoft To Do automatically.

Microsoft Planner and Outlook

The Microsoft To-Dos integration has no relationship with Microsoft Teams at the app or meeting level. To-Dos synced through this integration can be viewed in Teams via the Tasks by Planner and To Do app, but this is a Microsoft-side display — not a direct Ninety–Teams integration.

Ninety does not currently have a native Microsoft Teams app. For updates on what's coming, visit the Product Updates page.

Plan and permission requirements

The Microsoft To-Dos integration is included at no additional cost on the following Ninety subscription plans:

• Essentials
• Accelerate
• Thrive
• Legacy (grandfathered accounts — Legacy is equivalent to Thrive and includes full integration access)

The integration is not available on the Free plan.

To check your company's current plan, Owners or Admins can click their name at the bottom of the left navigation and then click Billing.

Troubleshooting

Issue: I authenticated successfully with Microsoft, but no task lists appear in the dropdown.

This usually means one of two things: your Microsoft account does not yet have a To Do list created, or your organization requires admin consent before external apps can access task data.

1. Navigate to to-do.office.com and sign in with your Microsoft account.
2. Create a new task list if none exists.
3. Return to Ninety and try the integration setup again.
4. If lists still do not appear, ask your IT administrator to check whether admin consent is required for Ninety in your Microsoft 365 admin center.

Issue: The integration works for my colleagues but not for my account.

This is typically a user-specific Microsoft account issue rather than an organization-wide policy problem.

1. In Ninety, go to User Settings > Integrations > Microsoft and toggle the integration off.
2. Refresh your browser.
3. Toggle the integration back on and sign in again.
4. If that does not resolve it, try opening Ninety in an incognito or private browser window and repeating the steps above.
5. If the issue persists, ask your IT administrator to check for conditional access policies or user-specific permission restrictions on your Microsoft account that may differ from your colleagues' accounts.

Issue: I granted Microsoft admin consent, but the integration still isn't working.

Admin consent addresses organization-level permissions, but the user-level connection may still need to be refreshed.

1. Go to User Settings > Integrations > Microsoft and toggle the integration off.
2. Clear your browser cache and cookies.
3. Log out of Ninety and log back in.
4. Toggle the integration back on and complete the sign-in and task list selection.
5. If the issue continues, try a different browser — some users have found that Safari does not complete the connection reliably, while Chrome resolves it.

Issue: I can only see "Tasks" in the dropdown and can't choose a specific Planner plan.

This is expected behavior. The dropdown surfaces Microsoft To Do lists, not Planner plans. You cannot target a specific Planner plan as your sync destination. The connection to Planner is automatic and flows from whichever Microsoft To Do list you select.

If you need your To-Dos to appear in a shared list (for example, as an executive assistant managing tasks for someone else), the current integration does not support shared list selection. Consider using Zapier to build a custom workflow for more advanced routing needs.

Issue: My To-Dos from before I turned on the integration aren't showing up in Microsoft To Do.

This is expected behavior. The integration only syncs To-Dos assigned to you after the integration is activated. Previously assigned To-Dos do not migrate retroactively.

Extending your Microsoft integration with Zapier

If you need capabilities beyond what the native Microsoft To-Dos integration offers (like routing To-Dos to a shared list, triggering workflows when tasks are completed, or syncing with apps beyond the Microsoft ecosystem), Zapier lets you build those connections yourself.

Ninety's Zapier integration connects your To-Dos with over 7,000 apps. Common workflows that extend your Microsoft integration include:

• Create Outlook calendar events from Ninety To-Dos — turn task assignments into time-blocked appointments on your calendar.
• Post Microsoft Teams channel alerts when To-Dos are created or completed — surface Ninety accountability within the channels your team already uses.
• Sync To-Dos between Ninety and tools like Asana, ClickUp, or Todoist — if your team executes detailed project work in another platform, Zapier bridges the gap.

Each person on your team sets up their own Zapier connection. Zapier respects the same permissions you have in Ninety — automations work with your own To-Dos and the teams you belong to.

Ninety's Zapier integration is available on Essentials, Accelerate, and Thrive plans.

To get started, read Using Zapier to Connect To-Dos in Ninety to Other Platforms.

Frequently asked questions

Can I create a task in Microsoft To Do and have it appear in Ninety? No. Ninety is the source of truth for To-Do creation. Tasks created in Microsoft To Do, Outlook, or Planner do not sync back to Ninety. To create a To-Do, you must do so in Ninety directly.

Can my Owner or Admin turn on this integration for the whole company? No. The Microsoft To-Dos integration is an individual user setting. Each person on your team must activate it from their own User Settings. This is a Microsoft security requirement — external apps connect to individual Microsoft accounts, not to an organization's account as a whole.

Can I choose which team's To-Dos sync to Microsoft? No. The integration syncs all To-Dos assigned to you across all your teams. You cannot filter by team.

What happens to a To-Do in Microsoft To Do if it gets reassigned in Ninety? If a To-Do assigned to you is reassigned to a colleague who also has the integration enabled, it is automatically removed from your Microsoft To Do list and added to theirs. If the new assignee does not have the integration enabled, it simply disappears from your Microsoft list.

What happens if I delete a task in Microsoft To Do? The task is automatically archived in Ninety — it is not permanently deleted. Ninety maintains a record even when the Microsoft-side task is removed.

Does the integration support rich text formatting? Ninety supports rich text in To-Do descriptions, but Microsoft To Do has formatting limitations. Rich text from Ninety may display differently or as plain text in Microsoft To Do.

Is this integration available if I'm on the Legacy plan? Yes. Legacy plan accounts are grandfathered into the equivalent of our Thrive plan and have full access to the Microsoft To-Dos integration.

Is this integration available during the free trial? No. The Microsoft To-Dos integration is not available on the Free plan or during a free trial. It becomes available when your company subscribes to Essentials, Accelerate, or Thrive.