> ## Documentation Index
> Fetch the complete documentation index at: https://fillout.com/help/llms.txt
> Use this file to discover all available pages before exploring further.
# Connect your form to ActiveCampaign
> Add new and update existing ActiveCampaign contacts from a Fillout form to grow your newsletter audience. Add tags to contacts based on conditions in your form.
## What is ActiveCampaign?
[**ActiveCampaign**](https://www.fillout.com/integrations/activecampaign) is a platform for email marketing and lead nurturing, enabling businesses to automate personalized communications and targeted campaigns for effective customer engagement and conversion optimization.
## How it works
Open the form you want to `Integrate` with ActiveCampaign.
When creating your form, make sure to set the email, name, and other fields you would like to link to your ActiveCampaign list to **required**.
Enter your **API URL** and **API Key** from ActiveCampaign into Fillout. Go to the link in the banner to learn how to find these. Then, select a **List** in ActiveCampaign you’d like to connect to.
[Match the fields](https://www.fillout.com/help/additional-integration-mappings#how-to-map-fields-manually) in your Fillout form to the corresponding fields in your ActiveCampaign list. For example, link the email address to its respective field.
You can use other **Fields**, such as name, number, and more in your form to update your contacts' details.
Once everything is set, click `Finish setup` on the upper right corner followed by `Publish`.
That's it! Answers to mapped fields from new submissions will now appear in your ActiveCampaign list.
If a contact with the provided email address already exists, Fillout will automatically update the existing contact's information.
## How to add tags
You can add ActiveCampaign tags to new contacts automatically to help group your newsletter audiences. `+ Add tag` and choose from the dropdown.
To add a tag to specific contacts, toggle the `Add contionally?` switch. `Set conditional logic` and choose when to apply it. For example, we'll add the "New" tag when a customer hasn't been part of our waitlist before.
Remember to click `Publish` after making any changes to the integration.
## Specify a condition
You can run your integration only when a specific condition is met. More info [here](/conditional-integration).
## Related articles
Perform an integration only when a certain condition is met.
Show or hide fields based on multiple conditions at once.
Configure form fields and values to send to integrations.