Integrate ContactOut with FastBill to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Search Company using ContactOut when Contact Deleted in FastBill
Get LinkedIn Profile by URL in Contactout when New Customer in FastBill
Search Company using ContactOut when Customer Updated in FastBill
Search Company using ContactOut when Invoice Canceled in FastBill
Get LinkedIn Profile by URL in Contactout when New Offer in FastBill
Start from a real workflow other teams are already running.
ContactOut
When this happens...
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
Search Company using ContactOut when Contact Deleted in FastBill
Use this flowGet LinkedIn Profile by URL in Contactout when New Customer in FastBill
Use this flowSearch Company using ContactOut when Customer Updated in FastBill
Use this flowSearch Company using ContactOut when Invoice Canceled in FastBill
Use this flowGet LinkedIn Profile by URL in Contactout when New Offer in FastBill
Use this flowGet LinkedIn Profile by URL in Contactout when New Contact in FastBill
Use this flowSearch Company using ContactOut when Customer Deleted in FastBill
Use this flowSearch Company using ContactOut when New Invoice in FastBill
Use this flowGet LinkedIn Profile by URL in Contactout when Invoice Canceled in FastBill
Use this flowSearch Company using ContactOut when Offer Updated in FastBill
Use this flowEverything you can automate between ContactOut and FastBill.
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 ContactOut integrations.
Get profile details for a single linkedin profile URL.
Get Company details.
Creates a new customer in FastBill.
Creates a new invoice.
Adds full payment for an invoice.
Send an invoice by email.

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.

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ContactOut is a powerful tool designed to help professionals find and connect with potential contacts by providing access to email addresses and phone numbers. It is widely used for recruitment, sales, and networking purposes, offering a comprehensive database of contact information to enhance outreach efforts.
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 ContactOut 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 ContactOut 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 ContactOut triggers actions in FastBill, and a separate workflow where FastBill triggers actions in ContactOut. 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 ContactOut and FastBill. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire ContactOut 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.