Format Date field to allow labels or a note

Is there a way to allow labels in a date field? Or maybe a note?
We use Monday to track projects. Some items need to be completed by a certain date and other items are exempt from that requirement. So we won’t have a date for completion because nothing will be completed. But I wanted to flag these items so the team does not think we just forgot to input a date.

Hey Bella,

Hm, perhaps you could set up a status column to identify those dates that are exempt from requirements? Alternatively, you could set up a text column to input your notes? Could any of these options work?