From the free article in The Detroit News:
According to the NOA, allegation No. 1 involved impermissible recruiting contact and inducements to three football recruits and their fathers. One of the prospects was given access to the football facilities and met with a coach in the weight room. The redacted NOA does not say which coach or coaches were involved, but a recruit and his father were met at a local restaurant and “the football program provided a discounted meal” and also allegedly had a free meal at a local restaurant. The recruit and his father were given a tour of the campus and visited the football facilities, where they were given a tour. The third recruit and his father were met at a local restaurant when they visited the campus. They were provided a tour of the campus, according to the NOA.
It is unclear in allegation No. 2, which coach was involved, but the enforcement staff alleged that during an interview with investigators in 2022, the coach failed to cooperate and provided misleading or false information.
The third allegation involves Harbaugh and the “unethical or dishonest conduct."
The NCAA issued a fourth allegation that involved the football staff's involvement in on-campus evaluations and the use of non-coaching staff as hands-on coaches “in the presence of the assistant football coaches.”
Finally, the fifth allegation said that the first two allegations “demonstrate that the institution did not (a) effectively deter and/or detect the football program's impermissible in-person on-campus and off-campus interactions with prospective student-athletes and (b) ensure the football program's compliance with noncoaching staff member legislation during the 2021 period and on-campus evaluation restrictions.”

Michigan Level II violations detailed in release of NCAA Notice of Allegations
It was announced in April Michigan football will serve 3 years probation as a result of the violations during the COVID-19 recruiting dead period.
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