For more information please visit https://developers.klaviyo.com/en/v2026-07-15/reference/api-overview#filtering
Allowed field(s)/operator(s):
id: any (string)
messages.channel: equals (allowed values: 'email', 'sms', 'mobile_push')
name: contains (string)
status: any, equals (allowed values: 'Scheduled', 'Sent', 'Draft', 'Cancelled', 'Adding Recipients', 'Sending', 'Variations Sent', 'Sending Segments', 'Cancelled: Smart Sending', 'Preparing to send', 'Cancelled: Account Disabled', 'Cancelled: No Recipients', 'Preparing to schedule', 'Cancelled: Internal Error', 'Queued without Recipients', 'Cancelled: Billing Limit', 'Cancelled: Misconfigured', 'Unknown')
archived: equals (boolean)
created_at: greater-or-equal, greater-than, less-or-equal, less-than (date-time)
scheduled_at: greater-or-equal, greater-than, less-or-equal, less-than (date-time)
updated_at: greater-or-equal, greater-than, less-or-equal, less-than (date-time)