Site has a custom Membership status that is no longer required. They try to delete that Status but it says 'no way jose: This membership status cannot be deleted as memberships exist with this status'. They go do a Membership Search - find none with that status. I check in DB as well in case some membership belong to contacts in Trash - still no results.
I suggest they set it to 'disabled' as a temporary solution.
Why won't it allow them to delete via UI. I tried replicating with a brand new custom Status on demo but that could be deleted.