post
https://a.klaviyo.com/api/campaigns
This endpoint is in beta and will be released in GA in our 2026-07-15 revision.
A beta revision header (2026-04-15.pre) is required to use our beta APIs.
Create a campaign with inline audiences, messages, and variations.
Rate limits:
Burst: 10/s
Steady: 150/m
Scopes:
campaigns:write