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ActiveCampaign Integration

You need a valid API key and API endpoint generated from your ActiveCampaign account.

  • Log in to your ActiveCampaign account.
  • Click Settings (top-right corner).
  • In the left menu, select Developer.
  • The Key and URL are located in the API Access panel.

Navigate to the Integrations page, click the Add New Integration button, and follow these steps:

  • Enter Integration name > ActiveCampaign.
  • Select Integration > ActiveCampaign.
  • Turn on the Enabled toggle.
  • Enter API Key > copy the API Access Key from the ActiveCampaign Developer settings.
  • Enter API URL > copy the API Access URL from the ActiveCampaign Developer settings.
  • In the Notification Recipients field, enter your email address to receive notifications if the integration fails.

Click the ADD button to save this integration.

3. Enable Double Opt-In (Using an “On Hold” List)

Section titled “3. Enable Double Opt-In (Using an “On Hold” List)”

For Double Opt‑In we recommend using a dedicated on‑hold list. Fluentos will send new contacts to that list. Only contacts who click the confirmation button in the email will be moved to your final marketing list.

In ActiveCampaign:

  1. Go to Lists.
  2. Create a list for pending subscribers, for example: Fluentos – On Hold.
  3. Create your main list (if you don’t already have it), for example: Master Contact List.

New Fluentos contacts will first go to Fluentos – On Hold. After confirmation they will be moved to Master Contact List.

3.2 Configure Fluentos to send contacts to the “On Hold” list

Section titled “3.2 Configure Fluentos to send contacts to the “On Hold” list”

In Fluentos campaign integration settings:

  • Select your ActiveCampaign integration.
  • Select the Subscriber List to Fluentos – On Hold.
  • Map campaign values to ActiveCampaign fields.

All new end user submissions will now be sent to in ActiveCampaign on the on‑hold list.

3.3 Create the Double Opt-In automation in ActiveCampaign

Section titled “3.3 Create the Double Opt-In automation in ActiveCampaign”

This automation will:

  • Start when a contact is added to the on‑hold list.
  • Send a confirmation email.
  • When the contact clicks the button, move them from Fluentos – On Hold to Master Contact List.
  1. Go to Automations > New Automation and click Start from Scratch.

  2. Add a start trigger:

    • Choose “Subscribes to list”.
    • Select Fluentos – On Hold.
    • Set Runs to Once and click Save.
  3. Add the confirmation email:

    • Click the + node after the trigger.
    • Choose Sending > Send an email and create a new email, e.g. “Confirm Your Email Subscription”.
    • In the email body:
      • Explain that the user is almost done.
      • Add a button labeled for example “Confirm my subscription”.
  4. Make sure link tracking is enabled (required):

    • In the email designer, click the gear icon (email settings).
    • Ensure “Link tracking” (or “Open/Link Tracking”) is turned ON.
    • This is mandatory: without tracking, ActiveCampaign cannot detect the button click and the automation will not move the contact.
  5. Configure the button click action (move to the final list):

    • In the email editor, click on the confirmation button.
    • Set the Button URL to your confirmation/thank‑you page, for example:
      https://yourdomain.com/thank-you
    • With the button still selected, open Link Actions (Add Action / Add Link Action).
    • Add the following action:
      • Action: Subscribe to list
      • List: Master Contact List
    • Optionally add more actions:
      • Unsubscribe from list > Fluentos – On Hold
  6. Finish the automation:

    • After the email step you can simply end the automation, or
    • (Optional) add a Wait and If/Else step to handle contacts who never confirm.
    • Set the automation to Active.

Result:

  • Fluentos sends new contacts to Fluentos – On Hold.
  • Automation sends a Double Opt‑In confirmation email.
  • When the user clicks the tracked button:
    • ActiveCampaign moves them to Master Contact List (your real list).
    • Optionally removes them from the on‑hold list.

4. Enable Single Opt-In (Skip the On-Hold List)

Section titled “4. Enable Single Opt-In (Skip the On-Hold List)”

If you do not require Double Opt‑In, you can subscribe contacts directly to your main list and optionally send a welcome sequence.

4.1 Configure Fluentos to use the final list

Section titled “4.1 Configure Fluentos to use the final list”

In Fluentos campaign integration settings:

  • Select your ActiveCampaign integration.
  • Set the Subscriber List for the ActiveCampaign integration to your final marketing list, e.g. Master Contact List.
  • Map campaign values to ActiveCampaign fields.

Contacts will now be immediately active on your main list when they submit via Fluentos.

In Single Opt‑In mode, there is no confirmation step. Contacts from Fluentos go directly to Master Contact List and can start receiving campaigns or automation emails immediately.