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

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


Harvest

Add the Constant Contact Node
Next, click the plus (+) icon on the Harvest node, select Constant Contact from the list of available apps, and choose the action you need from the list of nodes within Constant Contact.


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Constant Contact

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

Save and Activate the Scenario
After configuring Harvest, Constant Contact, 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 Harvest and Constant Contact integration works as expected. Depending on your setup, data should flow between Harvest and Constant Contact (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Harvest and Constant Contact
Harvest + Constant Contact + Google Sheets: When a new time entry is created in Harvest, the flow checks if the client exists in Constant Contact. If not, it creates the client. Finally, it adds a row to a Google Sheet with the client's contact information and the time entry details.
Constant Contact + Harvest + Slack: When a new contact subscribes via Constant Contact, a new project is automatically created in Harvest with the contact's name. A welcome message is then sent to a specific Slack channel to notify the team of the new client.
Harvest and Constant Contact integration alternatives

About Harvest
Automate time tracking with Harvest in Latenode. Sync time entries to accounting, payroll, or project management. Create flows that auto-generate invoices or trigger alerts for budget overruns. Latenode provides the flexibility to connect Harvest data to other apps and add custom logic, avoiding manual updates and delays.
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About Constant Contact
Automate Constant Contact tasks within Latenode to streamline email marketing. Trigger campaigns based on CRM events, segment lists using data transformations, and analyze results alongside other business metrics. Latenode’s flexible logic and affordable pricing make complex email automations accessible without code.
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See how Latenode works
FAQ Harvest and Constant Contact
How can I connect my Harvest account to Constant Contact using Latenode?
To connect your Harvest account to Constant Contact on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Harvest and click on "Connect".
- Authenticate your Harvest and Constant Contact accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically add new Harvest clients to Constant Contact?
Yes! Latenode enables this. Automatically sync new Harvest clients to Constant Contact lists. Boost engagement and keep your contacts updated with zero code and advanced logic!
What types of tasks can I perform by integrating Harvest with Constant Contact?
Integrating Harvest with Constant Contact allows you to perform various tasks, including:
- Adding new Harvest clients automatically to a Constant Contact list.
- Updating contact information in Constant Contact from Harvest updates.
- Triggering email campaigns in Constant Contact based on Harvest project completion.
- Sending personalized thank-you emails for large Harvest invoice payments.
- Creating custom reports combining data from both Harvest and Constant Contact.
How secure is connecting Harvest to Latenode for automation?
Latenode uses secure OAuth for Harvest and Constant Contact, ensuring your data remains private and protected during automation workflows.
Are there any limitations to the Harvest and Constant Contact integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex custom field mappings may require JavaScript nodes.
- Very large contact list synchronizations may experience initial delays.
- API rate limits for Harvest and Constant Contact apply to the integration.