Update Broadcast

Update an existing broadcast's settings and email content.

Use Cases:

• Add or modify email content (subject, HTML, text)
• Change sender address or reply-to
• Update topic or segment targeting
• Schedule or reschedule send time
• Toggle open and click tracking

Behavior:

• Only provided fields are updated (partial updates supported)
• Only DRAFT or QUEUED broadcasts can be updated
• Email content can be set or cleared
• Send time can be set or removed
• Returns the complete updated broadcast object

Required Scope: write:broadcasts

Updatable Fields:

• name: Broadcast display name
• from: Sender email address
• emailContent: Subject, HTML, text, preview text, editor content
• replyTo: Reply-to email address
• topicId: Topic association (set to null to remove)
• segmentId: Segment targeting (set to null to remove)
• sendAt: Scheduled send time (ISO 8601)
• trackClicks: Enable/disable click tracking
• trackOpens: Enable/disable open tracking

Note: Cannot update broadcasts that have already been sent or are currently sending.