Schedule a broadcast

Expands a draft campaign into a paced send plan and schedules it. Sends are screened, paced, and behind an off-by-default delivery gate, so scheduling produces the plan but does not deliver until the gate is live. Requires a write-scoped key.

curl -X POST "https://example.com/api/admin/broadcasts/0/schedule"

{  "planned_sends": 1000,  "status": "scheduled"}

{  "detail": "Not authenticated"}

{  "detail": "campaign not found"}

{  "detail": "audience is empty"}