I have noticed that sometimes when I enter a payment for a bill I have included in the Bill and Income Reminders that some of them generate a popup and ask if this is the payment for XXXX bill scheduled for x/x/xx. But for other payments I enter also for a bill I have included in the Bill and Income Reminders there is no such recognition or prompt. I have looked at the auto enter settings for the reminders and they are identical. Payees, From Account and Categories are all the same for the payment and reminder from what I can tell but some get recognized and some don't.
What causes Quicken to recognize some bills in the scheduled reminders when a payment is entered in a register and others it does nothing