put
https://api.apollo.io/api/v1/sequences/
Use the Update a Sequence endpoint to update an existing sequence (emailer campaign) in your team's Apollo account.
You can update sequence-level settings, such as the name, active state, schedule, and sending limits, as well as the sequence's steps and the email touches within each step.
To turn a sequence on or off, set the active field. Passing emailer_steps will create, update, reorder, or remove steps and their touches based on the IDs you provide.
To create a new sequence instead, use the Create a Sequence endpoint.
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.