Was your listing violation similar to this?
Product detail page was removed 3 days ago
These are sub-optimal selection and this ASIN has been suppressed as it is in violation of the ASIN Creation policy.
I just found this on an existing (over a year) listing. When I edit there are no red flags indicating anything wrong. It’s not my brand, but one I have been selling for years, nothing else in my inventory of that brand is suppressed.
The violation is in Account Health but no indication what they think is violating, just what the manage inventory page is showing: the sub-optimal selection (what is that??) and ASIN creation policy - no idea why that is a problem. I did not create the ASIN, it was existing.