If the Push/Rich Notification Retention Days are set to 3 and the notification was sent on Monday (any time) then it will be removed from the App when the 3rd day (72 hours) is completed.
Example: If the notification was sent on Monday at 11:00 AM then it will be removed after 72 hours i.e Thursday at 10:59 AM.
Please note: The same day when Push Notification is sent to the users is also included in the number of days set for the Push/Rich Notification Retention Days.
If further assistance is required, submit a ticket to Punchh Support. (For help submitting a ticket, click here)