campaign_id
. The option to Archive a campaign will appear after the campaign has been Paused.creative_id
and a summary of the Postage Type, Size, and custom merge tags with their default values. A Data Guide containing all required fields and merge tag values is available at the bottom of the page:audience_id
and the option to manually Add Member , or Upload CSV. When uploading a CSV, you'll have the option to map your column headers to required data before finalizing the upload: