@jerry_nguyen thank you for prompting me to have another look. I've poured over the documentation but somehow had it set in my mind that it was the missing property I needed to change. But that's not right. It's the late_policy_status property that needs to be changed. late_policy_status can hold values like "late", "missing", "excused", "none" etc. So the API can do what I'm looking for in its present state.