Connect MailerLite and FastBill
Integrate MailerLite with FastBill to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Create Customer in Fastbill when Subscriber Created in Mailerlite
Create Invoice in FastBill when Subscriber Created in Mailerlite
Add Payment for Invoice to FastBill when Subscriber Created in Mailerlite
Send Invoice by Email using FastBill when Subscriber Created in Mailerlite
Create Revenue in FastBill when Subscriber Created in Mailerlite
Popular MailerLite + FastBill flows
Start from a real workflow other teams are already running.
Choose a trigger
MailerLite
When this happens...
Subscriber Created
Subscriber Unsubscribed
Subscriber Added to Group
Subscriber Removed From Group
Subscriber Fields Updated
Subscriber Deleted
Subscriber Bounced
Campaign Sent
Subscriber Clicked Campaign Link
Subscriber Opened Campaign
Spam Complaint
Choose an action
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 Subscriber Created in Mailerlite
Use this flowCreate Invoice in FastBill when Subscriber Created in Mailerlite
Use this flowAdd Payment for Invoice to FastBill when Subscriber Created in Mailerlite
Use this flowSend Invoice by Email using FastBill when Subscriber Created in Mailerlite
Use this flowCreate Revenue in FastBill when Subscriber Created in Mailerlite
Use this flowAdd Payment for Revenue in FastBill when Subscriber Created in Mailerlite
Use this flowCreate Offer in FastBill when Subscriber Created in Mailerlite
Use this flowSearch Customer in FastBill when Subscriber Created in Mailerlite
Use this flowSearch Invoice in FastBill when Subscriber Created in Mailerlite
Use this flowCanceling an Invoice in FastBill when Subscriber Created in Mailerlite
Use this flowSupported Triggers & Actions
Everything you can automate between MailerLite and FastBill.
When this happensTriggers
A trigger is an event that starts a workflow.
Subscriber Created
Triggers when a subscriber was created on your mailing list.
Subscriber Unsubscribed
Triggers when a subscriber has unsubscribed from your mailing list.
Subscriber Added to Group
Triggers when a subscriber is added to a group.
Subscriber Removed From Group
Triggers when a subscriber has been removed from a group.
Subscriber Fields Updated
Triggers when the subscriber fields have been updated.
Subscriber Deleted
Triggers when a subscriber is deleted or forgotten.
Do thisActions
Action is the task that follows automatically within your MailerLite integrations.
Create or Update Subscriber
Create or update a subscriber
Add Subscriber to a Group
Adds a subscriber to a group
Change Subscriber Email
Change an existing subscriber email.
Unsubscribe a Subscriber
Unsubscribe an existing subscriber by its id or email
Remove Subscriber From Group
Remove subscriber from group
Find a Group
Search for a group by name.
Learn how to build your first workflow
Follow a simple walkthrough to create, test, and launch your first automation.
- 1
Connect your apps
Link the apps you want to automate.
- 2
Configure your workflow
Set up triggers, actions, and map your data.
- 3
Test & publish
Test your workflow and publish it.
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About MailerLite
MailerLite is an email marketing service provider with a focus on simplicity, excellent customer support, and beautiful email designs. MailerLite provides all the latest email marketing features designed to help you grow subscribers and build stronger relationships.
Learn moreSimilar apps
About FastBill
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 moreSimilar apps
Frequently Asked Questions
Sign up for a free viaSocket account, then authorize both your MailerLite 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 MailerLite 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 MailerLite triggers actions in FastBill, and a separate workflow where FastBill triggers actions in MailerLite. 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 MailerLite and FastBill. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire MailerLite 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.
