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

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


PostgreSQL

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


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Authenticate Wave
Now, click the Wave node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Wave settings. Authentication allows you to use Wave through Latenode.
Configure the PostgreSQL and Wave 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 PostgreSQL and Wave 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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Save and Activate the Scenario
After configuring PostgreSQL, Wave, 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 PostgreSQL and Wave integration works as expected. Depending on your setup, data should flow between PostgreSQL and Wave (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect PostgreSQL and Wave
Wave + PostgreSQL + Slack: When a new invoice is created in Wave, the invoice data is inserted into a PostgreSQL database. A Slack message is then sent to a designated channel notifying the team of the new invoice.
Wave + PostgreSQL + Google Sheets: When a new invoice is created in Wave, the invoice data is inserted into a PostgreSQL database. Periodically, a summary of invoice data from PostgreSQL is synced to a Google Sheet for reporting purposes.
PostgreSQL and Wave integration alternatives

About PostgreSQL
Use PostgreSQL in Latenode to automate database tasks. Build flows that react to database changes or use stored data to trigger actions in other apps. Automate reporting, data backups, or sync data across systems without code. Scale complex data workflows easily within Latenode's visual editor.
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About Wave
Use Wave in Latenode to automate payment reminders and subscription management. Connect Wave to your CRM or database to trigger personalized emails or SMS based on payment status. Latenode’s visual editor makes it simple to build complex billing workflows and handle edge cases without code, ensuring timely payments and reducing churn.
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FAQ PostgreSQL and Wave
How can I connect my PostgreSQL account to Wave using Latenode?
To connect your PostgreSQL account to Wave on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select PostgreSQL and click on "Connect".
- Authenticate your PostgreSQL and Wave accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically update Wave invoices from PostgreSQL data?
Yes, you can! Latenode's visual editor allows you to create automated workflows, ensuring your Wave invoices are always in sync with your PostgreSQL database records.
What types of tasks can I perform by integrating PostgreSQL with Wave?
Integrating PostgreSQL with Wave allows you to perform various tasks, including:
- Automatically creating Wave invoices from new PostgreSQL database entries.
- Updating customer information in Wave based on changes in PostgreSQL.
- Generating financial reports in Wave using data stored in PostgreSQL.
- Tracking invoice payments in PostgreSQL from Wave transaction data.
- Syncing product inventory between PostgreSQL and Wave for accurate accounting.
How do I handle large datasets from PostgreSQL within Latenode workflows?
Latenode offers efficient data processing and batching capabilities for handling extensive PostgreSQL datasets, ensuring smooth workflow execution and optimal performance.
Are there any limitations to the PostgreSQL and Wave integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex data transformations may require JavaScript code blocks.
- Real-time synchronization depends on the polling interval and API rate limits.
- Advanced error handling requires custom logic implementation.