Submit an Addendum?

A while ago I got accused of using ai during an online course. Obviously a very stupid mistake that I will regret forever. I ended up getting a warning that is apparently not on my record. However, I am unsure if I need to disclose it on my applications and write an addendum. When I asked my case manager, she said

"A Conduct Warning is considered a non-reportable sanction, meaning it does not become part of your educational record and you are not required to disclose it. While many law schools ask applicants to sign a release authorizing the University to provide information regarding their disciplinary history, a Conduct Warning would not be included in that report."

Since it is not on my record, and I am not required to report it, do I need to? I feel like ethically I should, and I do not want to get in trouble with the bar character and fitness test in a few years if I was actually supposed to report it and I didn't. But it sounds like I don't need to?

I would love some clarification on this if anybody has some insight! Thank you!