How to connect Google Cloud Pub\Sub and Mailgun
Create a New Scenario to Connect Google Cloud Pub\Sub and Mailgun
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 Mailgun will be your first step. To do this, click "Choose an app," find Google Cloud Pub\Sub or Mailgun, 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 Mailgun Node
Next, click the plus (+) icon on the Google Cloud Pub\Sub node, select Mailgun from the list of available apps, and choose the action you need from the list of nodes within Mailgun.


Google Cloud Pub\Sub
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Mailgun


Authenticate Mailgun
Now, click the Mailgun node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Mailgun settings. Authentication allows you to use Mailgun through Latenode.
Configure the Google Cloud Pub\Sub and Mailgun 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 Mailgun 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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Mailgun
Trigger on Webhook
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Google Cloud Pub\Sub
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Webhook response


Save and Activate the Scenario
After configuring Google Cloud Pub\Sub, Mailgun, 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 Mailgun integration works as expected. Depending on your setup, data should flow between Google Cloud Pub\Sub and Mailgun (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 Mailgun
Mailgun + Google Sheets: When a new delivery failure event occurs in Mailgun, a new row is added to a Google Sheet to track email delivery issues. This helps monitor and address email deliverability problems.
Mailgun + Slack: When a new bounce occurs in Mailgun, a notification is sent to a Slack channel. This ensures immediate awareness of critical email delivery issues.
Google Cloud Pub\Sub and Mailgun integration alternatives

About Google Cloud Pub\Sub
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About Mailgun
Use Mailgun in Latenode to automate email sending within your workflows. Trigger emails based on data changes, form submissions, or scheduled events. Latenode lets you filter, format, and personalize messages using data from other apps, creating dynamic campaigns and notifications without complex coding. Scale your outreach affordably by paying only for execution time.
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FAQ Google Cloud Pub\Sub and Mailgun
How can I connect my Google Cloud Pub\Sub account to Mailgun using Latenode?
To connect your Google Cloud Pub\Sub account to Mailgun 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 Mailgun accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I trigger emails based on Pub\Sub messages?
Yes, you can! Latenode enables real-time email sending via Mailgun based on Google Cloud Pub\Sub messages. Build highly responsive notification systems with its visual editor and powerful AI blocks.
What types of tasks can I perform by integrating Google Cloud Pub\Sub with Mailgun?
Integrating Google Cloud Pub\Sub with Mailgun allows you to perform various tasks, including:
- Send email notifications upon specific Google Cloud Pub\Sub events.
- Route Google Cloud Pub\Sub messages to different Mailgun mailing lists.
- Create custom email templates based on data from Google Cloud Pub\Sub messages.
- Archive Google Cloud Pub\Sub message content in email form for record-keeping.
- Trigger automated marketing campaigns based on real-time Google Cloud Pub\Sub data.
How do I handle Google Cloud Pub\Sub message formatting in Latenode?
Latenode’s data mapping tools allow you to easily parse and format Google Cloud Pub\Sub messages before sending them via Mailgun, even using custom JavaScript.
Are there any limitations to the Google Cloud Pub\Sub and Mailgun integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Large message payloads from Google Cloud Pub\Sub may impact workflow execution time.
- Mailgun's sending limits still apply when sending emails through Latenode.
- Complex data transformations might require custom JavaScript coding.