> For the complete documentation index, see [llms.txt](https://kbase.whitelabel-loyalty.com/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kbase.whitelabel-loyalty.com/developer/resources/campaigns-api-reference/referral-campaigns.md).

# Referral campaigns

Create member referral programs, invitation codes, and milestone rewards.

Referral campaigns configure member-get-member journeys.

The campaign controls invitation-link presentation, code generation, audience eligibility, and whether referrals are active. **Referral codes** identify the referring member, while **tranches** define the milestones and reactions that reward referred members and, optionally, their referrers.

Referral campaigns are distinct from the earning campaigns exposed at `/campaigns`.