Omitted fields keep their value.
body
HTML or plain text, as in AddCampaignFollowUpInput.body. Replaces a writing brief.
campaignId
delayAmount
delayUnit
emailRules
A writing brief, as in AddCampaignFollowUpInput.emailRules. Replaces a body.
followUpId
paused
True holds the step's sends that have not gone out; false resumes them.
UpdateCampaignAudiencePipelineInput
UpdateCampaignFollowUpRecipientsInput
