How to connect 123FormBuilder and Lemlist
Create a New Scenario to Connect 123FormBuilder and Lemlist
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 123FormBuilder, triggered by another scenario, or executed manually (for testing purposes). In most cases, 123FormBuilder or Lemlist will be your first step. To do this, click "Choose an app," find 123FormBuilder or Lemlist, and select the appropriate trigger to start the scenario.

Add the 123FormBuilder Node
Select the 123FormBuilder node from the app selection panel on the right.

123FormBuilder
Configure the 123FormBuilder
Click on the 123FormBuilder node to configure it. You can modify the 123FormBuilder URL and choose between DEV and PROD versions. You can also copy it for use in further automations.
Add the Lemlist Node
Next, click the plus (+) icon on the 123FormBuilder node, select Lemlist from the list of available apps, and choose the action you need from the list of nodes within Lemlist.

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Lemlist

Authenticate Lemlist
Now, click the Lemlist node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Lemlist settings. Authentication allows you to use Lemlist through Latenode.
Configure the 123FormBuilder and Lemlist 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 123FormBuilder and Lemlist 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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Lemlist
Trigger on Webhook
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123FormBuilder
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Iterator
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Webhook response

Save and Activate the Scenario
After configuring 123FormBuilder, Lemlist, 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 123FormBuilder and Lemlist integration works as expected. Depending on your setup, data should flow between 123FormBuilder and Lemlist (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect 123FormBuilder and Lemlist
123FormBuilder + Lemlist + Google Sheets: When a new submission is received in 123FormBuilder, the respondent is added as a lead to a Lemlist campaign, and the submission details are logged in a Google Sheet.
Lemlist + 123FormBuilder + Slack: When a Lemlist prospect fills out a 123FormBuilder form, the sales team is notified in Slack with a direct message to enable immediate follow-up.
123FormBuilder and Lemlist integration alternatives
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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About Lemlist
Automate personalized outreach with Lemlist inside Latenode. Build flows to trigger email campaigns based on CRM updates or data enrichment. Add conditional logic, use AI to personalize messages, and track results—all visually. Scale outreach without complex code or per-step fees. Use JavaScript for advanced customization.
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FAQ 123FormBuilder and Lemlist
How can I connect my 123FormBuilder account to Lemlist using Latenode?
To connect your 123FormBuilder account to Lemlist on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select 123FormBuilder and click on "Connect".
- Authenticate your 123FormBuilder and Lemlist accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically add form respondents to a Lemlist campaign?
Yes, you can! Latenode lets you instantly add new 123FormBuilder respondents to Lemlist campaigns. Automate lead nurturing and personalize your outreach with no-code ease.
What types of tasks can I perform by integrating 123FormBuilder with Lemlist?
Integrating 123FormBuilder with Lemlist allows you to perform various tasks, including:
- Add new form submissions to a Lemlist campaign as leads.
- Update lead information in Lemlist based on form responses.
- Trigger personalized email sequences in Lemlist upon form submission.
- Segment leads in Lemlist based on 123FormBuilder form data.
- Create new Lemlist contacts from 123FormBuilder submission data.
Can I filter form submissions before adding them to Lemlist?
Yes, with Latenode, you can filter 123FormBuilder submissions using advanced logic or even AI, ensuring only qualified leads are added to Lemlist.
Are there any limitations to the 123FormBuilder and Lemlist integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex form structures might require custom JavaScript for data mapping.
- Rate limits of 123FormBuilder and Lemlist API may impact high-volume workflows.
- Changes in 123FormBuilder or Lemlist's API could require workflow adjustments.