Why it works
OKRs quietly rot between planning and review — nobody updates them until the retrospective, by which point the data is guesswork. A standing quarterly reminder keeps progress current, and the "flag what's off-track" line surfaces problems while there's still time to react. The prompt is identical every quarter, so one scheduled email covers it for good.
Make it yours
Send it a couple of weeks before your quarter-end review so the numbers are fresh when you meet. If you run monthly goal check-ins, switch the cadence and keep the same three asks.