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Microsoft To Do Zapier integrationAutomate Microsoft To Do with Zapier.

The Microsoft To Do Zapier integration offers 4 triggers, 4 actions and 1 search. All four triggers are checked on a timer, none is instant. Here is what each operation does, what it costs, and where a To Do Zap usually goes wrong.

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Overview

What the Microsoft To Do Zapier integration does for you

It connects your Microsoft To Do account to Zapier, so that a task being created, updated or completed can start an automation, and so that other tools can create lists and tasks in To Do, or tick them off, without you typing anything. No code involved: you pick events from menus and map fields.

Three outcomes people usually build first.

Follow-ups that write themselves. Completed Task notices when you tick something off, and Create Task adds the next step as a new task. Finish "send the quote" and "call back about the quote" is already waiting.

A to-do list fed by your other tools. A form answer, a flagged email or a new deal in another app becomes a To Do item through Create Task, with the reminder switched on if you want one.

Tasks closed from elsewhere. Complete Task ticks off an item when the real work is marked done in another tool, so your list stops lying to you.

What this integration does not do: no trigger is instant, so on the free plan a new or completed task can wait up to 15 minutes before the Zap notices. The single search only looks inside one list at a time. And nothing here edits a task's content after creation: the four actions create lists, create tasks, complete tasks, or send a raw request.

There is no dedicated To Do page for Make or n8n on this site yet. If you are weighing tools, start with Make vs Zapier.

Vocabulary

Zapier vocabulary in one minute

The page uses eight Zapier words. Each one, once, in plain English.

Zap
An automation on Zapier: one trigger, then one or more actions that run every time the trigger event happens in your account.
Trigger
The event that starts a Zap, such as a task being completed in To Do. Once the Zap is on, Zapier waits for it.
Action
What the Zap does after it starts: the step that creates, ticks off or sends something for you in an app.
Task (billing)
Zapier's billing unit, not a To Do item: one action your Zap completed successfully. Your plan counts these.
Polling vs instant
Polling: Zapier checks the app on a timer for new items. Instant: the app tells Zapier itself, the moment the event happens.
Filter
A step that lets the Zap carry on only when what arrived matches the condition you set, and stops it quietly otherwise.
Search step
A step that looks for something already in an app, like an existing To Do item, so the following steps can use it.
Connection
Your Microsoft account linked to Zapier once, then reused by every To Do step in every Zap you build.
Cost

What a To Do Zap really costs

Microsoft To Do is not a premium app on Zapier, so the free plan can use it. Two words collide here: a Zapier task is a billing unit, not a to-do item.

  • Premium appNo, available on the free plan
  • Free plan100 tasks a month, two-step Zaps
  • Trigger checksNever billed
  • Failed actionNot counted

The trigger costs nothing, and neither do Zapier's checks for new items, however often they run. Each action that succeeds counts as one Zapier task: a Zap that creates two To Do items per run uses two. An action that fails is not counted. The free plan includes 100 tasks a month, unlimited Zaps and a check every 15 minutes, but only two-step Zaps: one trigger, one action. A filter, a search like Find a Task or a second action makes the Zap multi-step, and that needs a paid plan.

Connect

Connect Microsoft To Do in three steps

  1. 01

    Start a new connection

    Open the Apps page of your Zapier account and click + Add connection. In the dialog that opens, type Microsoft To Do in the search box and select it from the results.

  2. 02

    Sign in with Microsoft

    Click Add connection. A tab opens on Microsoft's sign-in page. Use the Microsoft account that holds the lists you want the Zap to read and write, then sign in.

  3. 03

    Allow access

    Grant Zapier access to that account. The connection then appears on your Apps page and every To Do step reuses it. Lists you don't own need read or write rights for you too.

First Zap

Your first Zap: a follow-up after every completed task

GoalWhen you complete a task in a chosen list, a follow-up task appears automatically, so the next step of a job is never forgotten.

  1. 01

    Create the Zap

    Start a new Zap, pick Microsoft To Do as the app that starts it and Completed Task as the event. Choose your To Do connection.

  2. 02

    Test the trigger

    Run the test. Zapier brings back the three most recently completed tasks of your account, so you build the rest of the Zap on a real one.

  3. 03

    Narrow it with a filter

    Add a Filter from the plus icon and set the field, the rule and the value. Remember: a filter makes the Zap multi-step, so it needs a paid plan.

  4. 04

    Add Create Task

    Add Microsoft To Do again with Create Task. Fill in the Title, the only required field, using words from the completed task, and turn the reminder on if useful.

  5. 05

    Test and publish

    Test the action once and check the new task in To Do. Then click Publish. Only tasks completed from now on will count, never older ones.

Triggers

The 4 Microsoft To Do triggers

4 events start a Zap when something happens in Microsoft To Do. Zapier checks for them at the interval your plan allows.

1

Completed Task

Polling trigger

In Zapier“Triggers when a task is completed.”

Ticking an item off is the event this one waits for. The Zap starts with the finished task, which makes it the natural hook for anything that should happen after the work is done.

How it fires
Zapier goes and looks at regular intervals, and how often depends on your plan: every 15 minutes on the free one.
When to use it
a consultant who wants an invoice reminder created the moment a client deliverable is checked off.
Watch out
if your Zap also completes tasks with Complete Task, it can feed itself; keep the two in different lists.
2

New List

Polling trigger

In Zapier“Triggers when a new list is created.”

A brand-new list in your To Do account starts the Zap. Lists usually mean a new project, a trip or a client, so this is where setup routines belong.

How it fires
Zapier goes and looks at regular intervals, and how often depends on your plan: every 15 minutes on the free one.
When to use it
a project manager who wants the same kickoff task created each time a new project list appears.
Watch out
a Zap that creates lists with Create List will set this trigger off as well, so check you are not building a loop.
3

New Task

Polling trigger

In Zapier“Triggers when a new task is created.”

The trigger Zapier puts forward for To Do: each task added to your account starts the Zap. That includes tasks typed by hand and tasks created by other tools.

How it fires
Zapier goes and looks at regular intervals, and how often depends on your plan: every 15 minutes on the free one.
When to use it
a team lead who wants every new task copied to a shared tracker so the team sees the workload.
Watch out
tasks your own Zaps create count too; a Zap that creates a task on New Task will retrigger itself.
4

Updated Task

Polling trigger

In Zapier“Triggers when a task is updated.”

Any change to an existing task, rather than a new one, is what this trigger reports. It suits workflows that care about edits more than about creation.

How it fires
Zapier goes and looks at regular intervals, and how often depends on your plan: every 15 minutes on the free one.
When to use it
an assistant who mirrors changes made in To Do into another planning tool.
Watch out
if completion is all that matters, Completed Task is the trigger built for that event; keep Updated Task for edits.
Actions

The 4 Microsoft To Do actions

Microsoft To Do gives you 4 actions. For each one: what it does for you, when to reach for it, and what to watch out for.

1

Create List

Action

In Zapier“Creates a new list.”

Adds a new list to your To Do account. The only required field is its title, which you can map from a project or client name in an earlier step.

When to use it
a new signed client in your CRM gets its own To Do list.
Watch out
a Zap built on New List that also creates lists can trigger itself.
2

Create Task

Action

In Zapier“Creates a new task.”

Puts a new item in To Do with the title you give it, and can switch a reminder on so the task pings you later.

When to use it
turning each flagged email or form request into a task you will actually see.
Watch out
if the same Zap runs on New Task, every created item restarts it.
3

Complete Task

Action

In Zapier“Marks a task as complete.”

Marks an existing task as done. You point it at a list, then at the task inside it; both are required.

When to use it
a ticket closed in your support tool ticks off the matching To Do item.
Watch out
the Zap needs to know which task, so a search step often comes first to find it.
4

API Request (Beta)

Action

In Zapier“This is an advanced action which makes a raw HTTP request that includes this integration's authentication.”

An advanced step that sends a raw request to Microsoft's service with your existing To Do connection, for needs the three other actions don't cover.

When to use it
someone technical on the team needs one specific call.
Watch out
requests only go to domains tied to this app, and Stop on error decides whether a failure halts the Zap.
Searches

The Microsoft To Do search

1 search step looks for data that already exists in Microsoft To Do, so a later step can use it.

A search step finds an item that already exists in To Do and hands it to the next steps. Searches sit at the bottom of the Action event list, under SEARCH. Three settings decide what happens when the result is not the one you expected.

1

Find a Task

SearchFind or create

In Zapier“Search for a Task.”

Looks for a task inside one list you choose and returns it to the following steps. Completed tasks stay out unless you ask to include them.

When to use it
before Complete Task, to find the item whose title matches a closed ticket.
Watch out
the editor also lists Find or Create Task; it is this same search with creation ticked, finding the task by title or creating it when missing.

The three settings every search exposes

  1. Successful if no search results are found?
    By default, a search that finds nothing stops the Zap and skips what depended on it. Turn it on and the Zap continues without the result.
  2. Create X if it doesn't exist yet?
    Tick it and the search becomes a find-or-create: the setting above disappears and the step asks for the fields it needs to create the missing task.
  3. If multiple search results are found?
    When several tasks match: keep the first one (the default), stop the Zap, or pass all of them on at once.
When it breaks

When a To Do Zap breaks

Zapier links one help article to this app, How to get started with Microsoft To Do on Zapier. The traps below come from the operations themselves and from how Zapier works.

To Do Zaps rarely fail loudly. They loop, they miss old items, or the search comes back empty. When a run fails and the reason is unclear, the Zapier troubleshooting guide covers the usual checks.

  • A Zap that keeps creating tasks

    A Zap on New Task that uses Create Task in the same account restarts itself on each item it creates, and burns through your task count fast.
  • Find a Task comes back empty

    Completed tasks are left out unless you include them, and the search only looks in the list you picked. Check both before blaming the title.
  • Older tasks never show up

    A Zap only reacts to what happens after you publish it. Tasks that already existed are not picked up; moving them is a separate job.
  • A bulk import goes quiet

    Importing many tasks at once can make a trigger return a huge batch, and Zapier's flood protection may hold those runs back.
Need help

Need help automating Microsoft To Do with Zapier?

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FAQ

Microsoft To Do and Zapier: your questions

01Is the Microsoft To Do Zapier integration free?
Yes, for simple Zaps. Microsoft To Do is not a premium app on Zapier, so the free plan can use it. That plan gives 100 tasks a month, unlimited Zaps and a check every 15 minutes. The limit is the shape of the Zap: one trigger and one action, nothing more. Add a filter, the Find a Task search or a second action and the Zap becomes multi-step, which requires a paid plan. A follow-up Zap with a single Create Task fits the free plan.
02How many Zapier tasks does a To Do Zap use?
One per successful action, each time the Zap runs. Watch the vocabulary: a Zapier task is a billing unit, not an item in your list. The trigger is free, and so are Zapier's checks for new items. A Zap that creates one To Do item per run uses one Zapier task; one that creates two items uses two. An action that fails is not counted. Loops are the real risk: a Zap that creates tasks while watching for new ones can use your monthly count quickly.
03Does Microsoft To Do sync with Zapier in real time?
No. All four Microsoft To Do triggers are polling triggers: Zapier asks To Do for new items on a timer rather than To Do notifying Zapier. How often depends on the plan: every 15 minutes on Free, 2 on Professional, 1 on Team and Enterprise. Paid plans can also run a check by hand from the editor. So a task you complete now may only start the Zap a few minutes later, up to 15 on the free plan.
04What does it take to connect Microsoft To Do to Zapier?
A Microsoft account that holds your To Do lists, a Zapier account, and access to any list you do not own but want the Zap to touch. From the Apps page, click + Add connection, search for Microsoft To Do, click Add connection, sign in to Microsoft in the new tab and grant access. Before building, make sure the lists your Zap will point at exist, since Complete Task and Find a Task both require one.
05Why does Find a Task not find a task you can see?
Usually because it is completed. By default the search leaves completed tasks out; the Include completed tasks option changes that. The second cause is the list: the search only looks inside the one you selected, so a task sitting in another list stays invisible. If you would rather create the task when it is missing, use Find or Create Task, which is the same search with creation switched on, matching on the task title.
06What if the To Do operation you need is not available?
Try API Request (Beta). It sends a raw request to Microsoft's service while reusing your To Do connection, so you don't handle authentication. It is an advanced step: requests only reach domains tied to this app, and the Stop on error setting decides whether a failure halts the Zap. For most needs, the 9 visible operations on this page (4 triggers, 4 actions, 1 search) remain the simpler place to start.
07Zapier, Make or n8n for Microsoft To Do?
There is no single winner, only criteria. Check whether the operation you need exists in each tool's catalog, how each one bills a run, and who will maintain the workflow once it is live. For Zapier, the facts are on this page: 9 visible operations, polling triggers only, and a free plan capped at two steps. Compare those numbers with what the other tools offer for the same app before choosing.