Required. "pending" for messages awaiting approval, "approved" for approved messages, "scheduled" for messages scheduled to send.

Maximum number of records to return (1–100, default 20).

Number of records to skip. Capped at 1,000.

Filter by prospect first or last name.

Required. Scope to a specific workspace. Admins and owners see all campaigns in the workspace; members see only their own.

Comma-separated campaign IDs to filter messages to.

Comma-separated tag IDs to filter by.

Comma-separated message types to filter by (e.g. CONNECT,INMAIL,FOLLOW_UP,RE_ENGAGEMENT).

Filter messages created on or after this date (YYYY-MM-DD).

Filter messages created on or before this date (YYYY-MM-DD).

Sort order by message created_at. Defaults to newest.

Comma-separated interest level values to filter by.

Comma-separated ICP fit values to filter by (e.g. STRONG,GOOD).

Admin/Owner only: scope results to a specific workspace member by their user ID.