Integrate Todoist with FastBill to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Create Customer in Fastbill when Project Created in Todoist
Create Invoice in FastBill when Project Created in Todoist
Add Payment for Invoice to FastBill when Project Created in Todoist
Send Invoice by Email using FastBill when Project Created in Todoist
Create Revenue in FastBill when Project Created in Todoist
Start from a real workflow other teams are already running.
Todoist
When this happens...
Project Created
New Incomplete Task
New Complete Task
New Task Created in Project
FastBill
Automatically do this!
Create Customer
Create Invoice
Add Payment for Invoice
Send Invoice by Email
Create Revenue
Add Payment for Revenue
Create Offer
Search Customer
Search Invoice
Canceling an Invoice
Create Customer in Fastbill when Project Created in Todoist
Use this flowCreate Invoice in FastBill when Project Created in Todoist
Use this flowAdd Payment for Invoice to FastBill when Project Created in Todoist
Use this flowSend Invoice by Email using FastBill when Project Created in Todoist
Use this flowCreate Revenue in FastBill when Project Created in Todoist
Use this flowAdd Payment for Revenue in FastBill when Project Created in Todoist
Use this flowCreate Offer in FastBill when Project Created in Todoist
Use this flowSearch Customer in FastBill when Project Created in Todoist
Use this flowSearch Invoice in FastBill when Project Created in Todoist
Use this flowCanceling an Invoice in FastBill when Project Created in Todoist
Use this flowEverything you can automate between Todoist and FastBill.
When this happensTriggers
A trigger is an event that starts a workflow.
Runs when a new project is created in Todoist.
Runs when a new incomplete task is added to the selected project within the last 15 minutes.
Triggers when Task is completed.
Runs when a new task is added to a selected project in Todoist.
Triggers when a new offer was created within your FastBill account.
Triggers when a new customer is created within your FastBill account.
Action is the task that follows automatically within your Todoist integrations.
Find an exiting project or create a new project
Updates an existing Todoist task with a new title, description, due date, labels, priority, duration, or assignee.
Marks a task as completed.
Creates a new task in Todoist with the provided title and details.
Creates a new Todoist project and optionally sets its color, parent project, favorite status, and view style (list or board).
Adds a comment to a selected Todoist task.

Follow a simple walkthrough to create, test, and launch your first automation.
Connect your apps
Link the apps you want to automate.
Configure your workflow
Set up triggers, actions, and map your data.
Test & publish
Test your workflow and publish it.
Recognized by leading review platforms and trusted by 10,000+ businesses worldwide.
Just describe the task in plain English. viaSocket AI selects the right apps, builds the workflow, maps the fields, and prepares everything for review before you publish.
Step-by-step video tutorials to help you connect apps, automate workflows, and save time.

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Todoist is a popular task management application that helps individuals and teams organize tasks and projects. Overall, Todoist is designed to help users increase productivity, stay organized, and effectively manage their tasks and projects, whether they're working individually or as part of a team.
Learn moreFastBill is a cloud app for German invoicing & accounting. Writing offers and invoices, paying your bills or preparing your tax return is easier than ever with FastBill.
Learn moreSign up for a free viaSocket account, then authorize both your Todoist and FastBill accounts. From there, pick a trigger in one app and an action in the other. Your first workflow can be live in under five minutes.
Yes. viaSocket uses instant triggers where available, so data moves between Todoist and FastBill as soon as the event happens. Scheduled polling triggers run at a maximum interval of 15 minutes.
Yes. You can map specific fields, apply filters to skip records that do not match your conditions, and transform values before they reach FastBill. No coding required.
Yes. You can set up a workflow where Todoist triggers actions in FastBill, and a separate workflow where FastBill triggers actions in Todoist. Both run independently and in real time.
viaSocket logs every run so you can see exactly what succeeded and what failed. Failed tasks can be retried from the dashboard without re-configuring the workflow.
Yes, there is a free plan that covers basic workflows between Todoist and FastBill. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire Todoist and FastBill integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.