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

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

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

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Postmark

Authenticate Postmark
Now, click the Postmark node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Postmark settings. Authentication allows you to use Postmark through Latenode.
Configure the Omnisend and Postmark 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 Omnisend and Postmark 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.

JavaScript
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AI Anthropic Claude 3
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Postmark
Trigger on Webhook
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Omnisend
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Iterator
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Webhook response

Save and Activate the Scenario
After configuring Omnisend, Postmark, 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 Omnisend and Postmark integration works as expected. Depending on your setup, data should flow between Omnisend and Postmark (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Omnisend and Postmark
Shopify + Omnisend + Postmark: When a customer abandons their cart in Shopify, their contact information is sent to Omnisend to create or update a contact. Then, Postmark sends a personalized follow-up email with the cart details to encourage purchase completion.
Postmark + Omnisend + Slack: When an email sent via Postmark bounces, Omnisend sends an SMS alert to the customer associated with the email, and a notification is sent to the support team in Slack to investigate the issue.
Omnisend and Postmark integration alternatives
About Omnisend
Use Omnisend in Latenode to automate email & SMS marketing based on real-time data. Connect e-commerce platforms and CRMs, then trigger personalized campaigns. Stop overspending on rigid marketing tools. Latenode's visual editor and flexible logic create scalable automation at a fraction of the cost.
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About Postmark
Use Postmark in Latenode to automate transactional emails. Connect events from your apps to trigger personalized messages, like order confirmations or password resets. Benefit from Postmark’s deliverability, plus Latenode's visual workflow builder and flexible logic to filter events and enrich email data, ensuring accurate and timely communication.
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FAQ Omnisend and Postmark
How can I connect my Omnisend account to Postmark using Latenode?
To connect your Omnisend account to Postmark on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Omnisend and click on "Connect".
- Authenticate your Omnisend and Postmark accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I trigger Postmark transactional emails from Omnisend events?
Yes, you can! Latenode's visual editor makes it easy to trigger Postmark emails based on specific Omnisend events, automating customer communication and enhancing their experience.
What types of tasks can I perform by integrating Omnisend with Postmark?
Integrating Omnisend with Postmark allows you to perform various tasks, including:
- Send transactional emails via Postmark based on Omnisend subscriber actions.
- Update Omnisend subscriber properties when emails are successfully delivered via Postmark.
- Track email bounces in Postmark and automatically unsubscribe users in Omnisend.
- Use AI in Latenode to personalize email content based on Omnisend data.
- Aggregate analytics from both platforms to gain a holistic view of campaign performance.
Can I use JavaScript to transform data between Omnisend and Postmark?
Yes! Latenode allows you to use JavaScript to manipulate data, enabling advanced transformations not possible with simple integrations.
Are there any limitations to the Omnisend and Postmark integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Rate limits of both Omnisend and Postmark APIs apply.
- Complex data transformations may require JavaScript knowledge.
- Initial setup requires valid API keys for both services.