Integrate FastBill with Todoist 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.
FastBill
When this happens...
New Offer
New Customer
Customer Updated
Customer Deleted
New Invoice
Invoice Completed
Invoice Canceled
Offer Updated
New Contact
Contact Updated
Contact Deleted
Todoist
Automatically do this!
Find or Create Project
Update Task
Complete Task
Create Task
Create Project
Add Comment
Move Task
Invite Collaborator
Filter tasks and assign label
Assign label to task using task Id
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 FastBill and Todoist.
When this happensTriggers
A trigger is an event that starts a workflow.
Triggers when a new offer was created within your FastBill account.
Triggers when a new customer is created within your FastBill account.
Triggers when a customer is updated within your FastBill account.
Triggers when a customer is deleted within your FastBill account.
Triggers when a new invoice is created within your FastBill account.
Triggers when an invoice is completed within your FastBill account.
Action is the task that follows automatically within your FastBill integrations.
Creates a new customer in FastBill.
Creates a new invoice.
Adds full payment for an invoice.
Send an invoice by email.
Creates a revenue entry.
Adds full payment for a revenue.

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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FastBill 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 moreTodoist 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 moreSign up for a free viaSocket account, then authorize both your FastBill and Todoist 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 FastBill and Todoist 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 Todoist. No coding required.
Yes. You can set up a workflow where FastBill triggers actions in Todoist, and a separate workflow where Todoist triggers actions in FastBill. 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 FastBill and Todoist. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire FastBill and Todoist integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.