# Stop leads in a campaign in bulk

`needleStopCampaignLeads`

Stop the live enrollments of up to 500 leads in a campaign, by lead id. Returns stopped or skipped (not_live: nothing live for that lead in this campaign) per lead id in request order; retrying is safe.

**Input**

- `campaignId` (string · uuid, required): Campaign id
- `leadIds` (string · uuid[], required): Leads to stop, by id.