Report showing who added discount to system?

I thought that to, but after more digging I found it had been in their system since August but at some point someone had to of changed it from "client/myhub" to "everywhere" as it started populating to sparefoot and offering discounts to those customers which we don't do. In that timeframe that store has had 5 different workers cycled in and out so who knows. Not even my role to audit this stuff but I was bored and just started looking at how our other sites were ranking on sites and came across it being listed on sparefoot with discounts.

@Eric_Lewis - The notes show who applied it no problem. I was trying to find out who actually created the discount itself in the system and then once I found it was an older discount I wanted to see who changed the settings for as it reverted back to being available "everywhere" instead of myhub/kiosk only so sparefoot started offering the discount again.