Connect PostFast and Klaviyo
Integrate PostFast with Klaviyo to automate workflows, sync data between apps, and eliminate repetitive tasks with AI-powered automation.
Popular PostFast + Klaviyo flows
Start from a real workflow other teams are already running.
Choose a trigger
PostFast
When this happens...
- Request a new Trigger for PostFast
Choose an action
Klaviyo
Automatically do this!
Get All Accounts
Find Profile
Create Profile
Create List
Add Profiles to a List
Remove Profile from List
Update a Profile
Subscribe Profile
Send Campaign
Get Catalog Categories
List Catalog Items
List Catalog Variants
List Profiles
List Campaigns
Find Posts in Postfast when New Profile in Klaviyo
Use this flowCreate Post on PostFast when New Profile in Klaviyo
Use this flowUpload Media From URL in Postfast when New Profile in Klaviyo
Use this flowGet Post Analytics in Postfast when New Profile in Klaviyo
Use this flowReply to Comment on PostFast when New Profile in Klaviyo
Use this flowFind Posts in Postfast when New Event in Klaviyo
Use this flowCreate Post on PostFast when New Event in Klaviyo
Use this flowUpload Media From URL in Postfast when New Event in Klaviyo
Use this flowGet Post Analytics in Postfast when New Event in Klaviyo
Use this flowReply to Comment on PostFast when New Event in Klaviyo
Use this flowSupported Triggers & Actions
Everything you can automate between PostFast and Klaviyo.
When this happensTriggers
A trigger is an event that starts a workflow.
New Profile
Runs when new profile is created. Polls at the configured interval.
New Event
Runs when new event is received in Klaviyo, allowing setting of time window and handling paginated results.
New Campaign
Runs when new campaign is created in a selected channel; supports polling interval and pagination.
Do thisActions
Action is the task that follows automatically within your PostFast integrations.
Find Posts
Find posts by ID, account, platform, status or scheduled date range.
Create Post
Schedule a post or save a draft for a social account, with media, first comment and platform settings.
Upload Media From URL
Upload an image, video, document or caption file from a public link and get its media key.
Get Post Analytics
Get published posts with their latest metrics for a date range and chosen accounts.
Reply to Comment
Reply publicly to a comment from the Social Inbox, or privately on Instagram.
Get All Accounts
Retrieve all Klaviyo accounts accessible with your API key.
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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AI will build it for you
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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About PostFast
PostFast is a social media scheduler that plans, schedules and publishes posts to 11 platforms (X, LinkedIn, Instagram, Facebook, TikTok, YouTube, Pinterest, Threads, Bluesky, Telegram, Google Business Profile), with analytics and a comment inbox.
Learn moreSimilar apps
About Klaviyo
Klaviyo is a powerful email and SMS marketing automation platform designed to help businesses grow by leveraging data-driven marketing strategies. It enables users to create personalized and targeted campaigns, track customer behavior, and analyze performance metrics to optimize marketing efforts.
Learn moreSimilar apps
Frequently Asked Questions
Sign up for a free viaSocket account, then authorize both your PostFast and Klaviyo 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 PostFast and Klaviyo 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 Klaviyo. No coding required.
Yes. You can set up a workflow where PostFast triggers actions in Klaviyo, and a separate workflow where Klaviyo triggers actions in PostFast. 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 PostFast and Klaviyo. Paid plans unlock higher task limits, faster polling, and advanced features like multi-step workflows and conditional logic.
No. The entire PostFast and Klaviyo integration is built through a visual, point-and-click interface. Code blocks are available if you want them, but they are never required.
