Create a new email campaign
API Key authentication. Secret keys (sk_*) are required for all endpoints except /v1/track. Public keys (pk_*) only work with the /v1/track endpoint for client-side event tracking. The project is automatically derived from the key.
Campaign name
Email subject line
HTML email body
Sender email address (must be from verified domain)
Target audience type
ALL, SEGMENT, FILTERED Campaign description
Sender name
Reply-to email address
Segment ID (required if audienceType is SEGMENT)
Root segment condition structure using logical groups.