Get a campaign's status

Returns one campaign's state. This is the poll an ai-generated campaign needs: creation returns immediately and the topic plan is written in the background, so watch initializationStatus reach completed before authoring steps or approving; failed puts the reason in initializationError. A manual campaign is completed from the start. Only the token owner's own campaigns resolve here (a delegated or team-visible campaign answers 404), and a deleted campaign answers 404. Rate limit: 30 requests/minute and 1,000/day per token owner, shared by every campaign, scheduled-send, campaign-template and knowledge-hub endpoint.

Errors:

• 404 CAMPAIGN_NOT_FOUND — No campaign with this id exists, it belongs to another account (including a campaign delegated to you or shared by your team's visibility settings), or it has been deleted.
• 422 VALIDATION_FAILED — campaignId is not a 24-character hex id.
• 429 RATE_LIMITED — More than 30 campaign requests in a minute, or 1,000 in a day, for this token owner (the bucket is shared by every /business/campaigns, /business/scheduled-sends, /business/campaign-templates and /business/knowledge-hubs call).
• 500 UNEXPECTED_ERROR — An unhandled failure; the detail stays in our logs and is never returned.

Requires one of the following token scopes: campaigns.