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When creating a newsletter referral program, you will be prompted to select your email service provider. To connect MailerLite:
  1. Set up a newsletter referral program and select MailerLite or MailerLite Classic as the ESP upon creation:
  2. Click Create.
  3. Under Program Settings, click Authorize next to MailerLite integration:
  4. Enter your MailerLite API key. Here’s how to find it.
  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.
  1. Click Update. Your subscriber list will be synchronized, and every subscriber will receive a unique referral link.