> ## Documentation Index
> Fetch the complete documentation index at: https://docs.partnero.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Connect ActiveCampaign to your newsletter referral program
When [creating a newsletter referral program](/knowledge-base/newsletter-referral-programs/how-to-setup-a-newsletter-referral-program), you will be prompted to select your email service provider.
To connect ActiveCampaign:
1. Click to create a newsletter referral program and select ActiveCampaign as the ESP in the 1st step:
2. Click **Create**.
3. Under Program Settings, click **Authorize** next to **ActiveCampaign integration**:
4. Enter your ActiveCampaign API URL and API key:
To obtain your ActiveCampaign API URL and Key, follow these steps:
1. Click "Settings" (gear icon) on the left menu.
2. The Account Settings menu will appear. Click the "Developer" option.
3. Copy your API URL and Key and paste it on Partnero.
5. Click **Connect**.
6. Once connected, select the subscriber group that will participate in the referral program, as well as the destination group, where new subscribers will be added.
7. Click **Update**. Your subscriber list will be synchronized, and every subscriber will receive a unique referral link.
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