How to Connect ActiveCampaign to a WordPress Form?

Updated On : April 14, 2026By : Reading Time : 1 minute

Key Takeaways

  • Nexter Blocks includes a Form block that connects to ActiveCampaign for automating email marketing.
  • Users must provide their ActiveCampaign API Key and API URL to set up the Form block.
  • Form submissions automatically add users to the ActiveCampaign contact list when configured correctly.
Table of Contents

Looking to automate your email marketing directly from your WordPress site? Connecting ActiveCampaign to your WordPress form lets you instantly send leads and form submissions to your ActiveCampaign lists.

With the Form block from Nexter Blocks, you can easily connect your ActiveCampaign account to your WordPress form.

To check the complete feature overview documentation of the Nexter Blocks Form block, click here.

Requirement  – This block is a part of the Nexter Blocks, make sure it’s installed & activated to enjoy all its powers.

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For this, you must have the ActiveCampaign API Key and API URL.

Get ActiveCampaign API Key and URL

Create an account in ActiveCampaign if you don’t already have one. Once you are logged into your account, follow the steps – 

1. Click on the Settings icon at the bottom left.

2. On the next page, click on the Developer in the left menu.

3. On the screen, you’ll have your API URL and Key.

activecampaign api

Use the Form Block

Now, add the Form block to the page and select the appropriate form type, then follow the steps –

1. Add the required form fields and customize them as per your requirements.

2. Then select the main form block and go to the Action After Submit tab and select ActiveCampaign from the Options dropdown.

3. Now you’ll see the ActiveCampaign tab, open it.

4. Then add your API key and URL in the Custom API Key and Custom API URL fields.

Now, when a user fills out your form, they will be automatically added to your ActiveCampaign contact list.

About the Author

Photo of Aditya Sharma CMO of NexterWP
CMO at POSIMYTH Innovations · NexterWP · 7 years experience

He has spent years in the WordPress ecosystem building, breaking, and optimizing sites until they actually perform. He works at the intersection of speed, growth, and usability, helping creators ship websites that load fast and convert. An active WordPress community contributor sharing through tools, tutorials, and direct collaboration. Tested practice, not theory.

WordpressThemesElementorn8nAIClaudeAutomationServer
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Related Frequently Asked Questions

What should I do if my ActiveCampaign API key or URL is incorrect?

If your API key or URL is incorrect, the connection between your WordPress form and ActiveCampaign will fail. Double-check the API settings in your ActiveCampaign account by navigating to Settings > Developer. Ensure you copy the API URL and Key accurately. A common mistake is including extra spaces or characters when pasting.

Can I use the Nexter Blocks Form block with other email marketing services?

The Nexter Blocks Form block is specifically designed to connect with ActiveCampaign. While it may be possible to use it with other services, the tutorial focuses on ActiveCampaign integration. For a complete feature overview of the Form block, check the documentation here.

What happens after I connect my WordPress form to ActiveCampaign?

Once you connect your WordPress form to ActiveCampaign, any user who fills out the form will be automatically added to your ActiveCampaign contact list. This automation streamlines your email marketing efforts, ensuring that leads are captured without manual input.

What are the best practices for customizing the form fields in Nexter Blocks?

When customizing form fields in Nexter Blocks, ensure that you only include fields that are necessary for your marketing goals. Avoid overwhelming users with too many fields, as this can lead to lower submission rates. Use clear labels and consider adding validation to ensure data quality.

Why isn't my form submitting data to ActiveCampaign?

If your form isn't submitting data to ActiveCampaign, first verify that you've correctly entered your API key and URL in the Form block settings. Additionally, check if the form fields are properly configured and required fields are filled out. Missing or incorrect configurations can prevent successful submissions.

Last reviewed: April 14, 2026

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