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POST

Path Parameters

string
required
The unique identifier of the campaign.

Prerequisites

Before starting a campaign, ensure it has:
  • At least one sequence step
  • Leads enrolled (added through the dashboard)
  • Email accounts assigned

Response

Returns the updated campaign object with status: "active".

Errors

Rate Limit

  • 100 requests per minute, per API key. Fixed 60-second window.
  • Every response includes X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset (unix epoch seconds).
  • A 429 response includes a Retry-After header (seconds until the bucket resets).
For client-side patterns (Retry-After, exponential backoff, monitoring X-RateLimit-Remaining), see Rate Limiting.