Trigger Team Notifications Based on Specific Upsell Purchases

I'd like the ability to create notification rules that trigger based on specific upsell purchases, not just reservation events.

Use case: When a guest purchases "pool heat" as an upsell, I want to automatically send an email/SMS reminder to my team member 24 hours before check-in to turn on the pool heat. Current limitation: Notification rules only trigger based on check-in/check-out times for all reservations, requiring manual verification of which guests purchased specific upsells.

Requested solution: Add upsell purchase conditions to notification rule triggers, so reminders only send when guests have purchased specific add-ons. This would save time and ensure important upsell-related tasks aren't missed!