How to connect Klaviyo and 123FormBuilder
Create a New Scenario to Connect Klaviyo and 123FormBuilder
In the workspace, click the “Create New Scenario” button.

Add the First Step
Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Klaviyo, triggered by another scenario, or executed manually (for testing purposes). In most cases, Klaviyo or 123FormBuilder will be your first step. To do this, click "Choose an app," find Klaviyo or 123FormBuilder, and select the appropriate trigger to start the scenario.

Add the Klaviyo Node
Select the Klaviyo node from the app selection panel on the right.


Klaviyo

Add the 123FormBuilder Node
Next, click the plus (+) icon on the Klaviyo node, select 123FormBuilder from the list of available apps, and choose the action you need from the list of nodes within 123FormBuilder.


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123FormBuilder

Authenticate 123FormBuilder
Now, click the 123FormBuilder node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your 123FormBuilder settings. Authentication allows you to use 123FormBuilder through Latenode.
Configure the Klaviyo and 123FormBuilder Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Klaviyo and 123FormBuilder Integration
Use various Latenode nodes to transform data and enhance your integration:
- Branching: Create multiple branches within the scenario to handle complex logic.
- Merging: Combine different node branches into one, passing data through it.
- Plug n Play Nodes: Use nodes that don’t require account credentials.
- Ask AI: Use the GPT-powered option to add AI capabilities to any node.
- Wait: Set waiting times, either for intervals or until specific dates.
- Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
- Iteration: Process arrays of data when needed.
- Code: Write custom code or ask our AI assistant to do it for you.

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AI Anthropic Claude 3
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123FormBuilder
Trigger on Webhook
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Klaviyo
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Iterator
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Webhook response

Save and Activate the Scenario
After configuring Klaviyo, 123FormBuilder, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.
Test the Scenario
Run the scenario by clicking “Run once” and triggering an event to check if the Klaviyo and 123FormBuilder integration works as expected. Depending on your setup, data should flow between Klaviyo and 123FormBuilder (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Klaviyo and 123FormBuilder
123FormBuilder + Klaviyo + Slack: When a new submission is received in 123FormBuilder, a new profile is added to a specified list in Klaviyo, and a notification is sent to a Slack channel.
123FormBuilder + Klaviyo + Google Sheets: When a new submission is received in 123FormBuilder, the profile in Klaviyo is updated with the form data, and the submission details are logged in a Google Sheet.
Klaviyo and 123FormBuilder integration alternatives

About Klaviyo
Use Klaviyo in Latenode to automate email marketing based on real-time triggers. Sync customer data, personalize campaigns, and track results within automated workflows. Connect Klaviyo to other apps like CRMs or payment gateways. Run automations without per-step cost limits, scale email personalization, and use AI to improve campaign targeting.
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About 123FormBuilder
Streamline data collection by connecting 123FormBuilder to Latenode. Automatically trigger workflows when forms are submitted. Route form data to CRMs, databases, or email marketing tools. Use Latenode to validate entries, calculate scores, and manage follow-ups — automating processes with a no-code, scalable workflow.
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See how Latenode works
FAQ Klaviyo and 123FormBuilder
How can I connect my Klaviyo account to 123FormBuilder using Latenode?
To connect your Klaviyo account to 123FormBuilder on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Klaviyo and click on "Connect".
- Authenticate your Klaviyo and 123FormBuilder accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I add form respondents to Klaviyo lists?
Yes, easily! Latenode lets you automate this, adding new 123FormBuilder submissions directly to Klaviyo lists. This ensures timely, targeted email marketing for new leads.
What types of tasks can I perform by integrating Klaviyo with 123FormBuilder?
Integrating Klaviyo with 123FormBuilder allows you to perform various tasks, including:
- Add new 123FormBuilder submissions as Klaviyo subscribers.
- Update Klaviyo subscriber properties based on form data.
- Trigger Klaviyo email flows upon form submission.
- Segment Klaviyo lists based on 123FormBuilder responses.
- Create custom reports on form submissions and email engagement.
How can I segment Klaviyo subscribers using form data?
Use Latenode's data mapping to link 123FormBuilder fields to Klaviyo properties. This ensures precise segmentation, improving campaign relevance.
Are there any limitations to the Klaviyo and 123FormBuilder integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex form logic may require custom JavaScript for full data transfer.
- Large-scale data migrations may require optimization for speed.
- Rate limits on the Klaviyo API can affect processing time for very large lists.