Flag a review card that has no due date so its owner can see the deadline gap before asking for a review.
Flag deadline gaps on review cards for the owners who can fix them.
Your card owners see the review work missing due dates before the weekly handoff, with links to the cards they need to update.
Show which review issues still need due dates before Monday.
Your Friday review queue shows which cards still need deadlines, with a label and note to help owners follow up.