Why it works
Open enrollment has a hard, once-a-year deadline, and people who miss it can be stuck for twelve months. The email is frozen but points at your benefits portal — the classic "static email + updating link" pattern — so the same scheduled reminder works every enrollment season while the portal carries that year's actual plans.
Make it yours
Schedule two or three reminders across the window: an opening announcement, a mid-window nudge, and a final-days warning. Keep the portal link stable so the message never needs rewriting.