How to handle erroneous transactions

We had an erroneous transaction go through a few days ago, and I have been researching how to handle this in my data. From my understanding, I cannot remove the data from Adobe Analytics. I can create a new virtual report suite that does not include the data, which seems tedious to do for every one-time issue. Is this really the best or only way to handle this kind of issue? Is there a way to notate this in a defect log that would show up when I pull reports that include the date of this incident? Is there a processing rule I could create that would apply historically?