Wisconsin apartment notice of entry questuon

Location: MADISON, WISCONSIN

NOTICE OF ENTRY validity question

July 20
I had a email notice that the building would begin doing inspections and locking doors and entering apartments as move our day approaches (Jul 25) , general email sent to everyone in the building

July 21
I received a new email saying management/maintenance would come in a specified time window that day to lock roommate B's door since they moved out.

July 26,
I believe they entered my apartment without my knowledge to lock a different roommates door - roommate C (who also moved out). There's more to why this is a thing but not going to go into that here since it turned into a, did someone break into my apartment or was it management situation.

I'm looking for info on whether or not that constitutes as a 24hr notice (the July 20th email) to see if that validates them coming in July 26th without letting me know (in a separate email with a specified time frame). Or if what they did July 26th is technically "illegal"