post
https://{youraccountname}.api-us1.com/api/3/campaigns
Create a campaign, its list targeting, its messages and its schedule in one call.
The campaign is created as a draft, or as a scheduled campaign when scheduledDate names a future date. Creating a campaign does not send it: use PUT /campaigns/{campaignId}/enable or POST /campaigns/{campaignId}/finish for that.
Requires the Campaign module and permission to create campaigns.
POST /campaign remains available for creating an empty campaign from a name and type alone.
The account does not have the Campaign module, or the user cannot create campaigns.
The payload is invalid: a missing listIds/messages, a duplicate messageId, a scheduledDate in the past, or a campaign that could not be created.