post
https://api.apollo.io/api/v1/emailer_campaigns//abort
Use the Deactivate a Sequence endpoint to stop an active sequence. Once deactivated, the sequence pauses all contacts and stops sending emails.
This endpoint requires a master API key. If you attempt to call the endpoint without a master key, you will receive a 403 response. Refer to Create API Keys to learn how to create a master API key.