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

Add the Google Cloud Pub\Sub Node
Select the Google Cloud Pub\Sub node from the app selection panel on the right.


Google Cloud Pub\Sub

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


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Authenticate Mailerlite
Now, click the Mailerlite node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Mailerlite settings. Authentication allows you to use Mailerlite through Latenode.
Configure the Google Cloud Pub\Sub and Mailerlite 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 Google Cloud Pub\Sub and Mailerlite 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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Mailerlite
Trigger on Webhook
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Save and Activate the Scenario
After configuring Google Cloud Pub\Sub, Mailerlite, 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 Google Cloud Pub\Sub and Mailerlite integration works as expected. Depending on your setup, data should flow between Google Cloud Pub\Sub and Mailerlite (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Google Cloud Pub\Sub and Mailerlite
Google Cloud Pub/Sub + Google Sheets: This automation tracks the number of messages received by a Pub/Sub topic and updates a Google Sheet with this count, providing a basic monitoring system. Each time a new message is received, the row with message count is updated.
Mailerlite + Google Cloud Pub/Sub + Slack: This workflow triggers when a new subscriber is added to Mailerlite. A message is then published to a designated Pub/Sub topic, and a notification is sent to a Slack channel to alert the team about the new subscriber.
Google Cloud Pub\Sub and Mailerlite integration alternatives

About Google Cloud Pub\Sub
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About Mailerlite
Use Mailerlite in Latenode to automate email marketing tasks. Add subscribers, send targeted campaigns, and track results based on triggers from your CRM, database, or e-commerce platform. Latenode’s visual editor and code blocks offer flexible control over message personalization and flow logic without complex coding or per-action pricing.
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FAQ Google Cloud Pub\Sub and Mailerlite
How can I connect my Google Cloud Pub\Sub account to Mailerlite using Latenode?
To connect your Google Cloud Pub\Sub account to Mailerlite on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Google Cloud Pub\Sub and click on "Connect".
- Authenticate your Google Cloud Pub\Sub and Mailerlite accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I trigger email campaigns from Pub/Sub messages?
Yes, with Latenode! Automatically trigger Mailerlite campaigns from Google Cloud Pub/Sub events, using low-code blocks or JavaScript. Benefit from instant email deployment based on real-time data.
What types of tasks can I perform by integrating Google Cloud Pub\Sub with Mailerlite?
Integrating Google Cloud Pub\Sub with Mailerlite allows you to perform various tasks, including:
- Triggering email sequences based on specific Pub/Sub message attributes.
- Adding new subscribers to Mailerlite lists from Pub/Sub message data.
- Updating subscriber information in Mailerlite from Pub/Sub events.
- Sending transactional emails based on real-time data in Pub/Sub.
- Segmenting subscribers dynamically based on Pub/Sub message content.
How do I handle Pub/Sub message formats within Latenode workflows?
Latenode simplifies message parsing using built-in data transformation blocks. Leverage JavaScript for complex formatting and custom logic.
Are there any limitations to the Google Cloud Pub\Sub and Mailerlite integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Large message payloads from Pub/Sub may impact workflow execution speed.
- Complex data transformations might require advanced JavaScript knowledge.
- Rate limits on Mailerlite's API could affect high-volume email sending.