Create a new campaign.
For list segments selection instead of a whole recipient list, useDocumentation Index
Fetch the complete documentation index at: https://docs.ecomail.cz/llms.txt
Use this file to discover all available pages before exploring further.
"recepient_lists": {"segments": [{"id": "segment_id", "list": 14}]}.
Segment IDs can be obtained from the Show list detail endpoint.