For every upcoming subscription delivery date where a customer still has meals left to pick, this automation sends the Subscription: Meals To Choose Reminder email (with how many meals are still needed, the ordering cutoff, and a direct link to pick meals) — but only once per delivery date. Once that reminder has gone out for a date, it's flagged as sent and won't be repeated for the same date, even on later runs.

So if a subscriber isn't getting the reminder, it's usually because they've already fully chosen their meals for that date, or they've already received the one-time reminder for it.