The sales manager and system administrator will be able to edit this new contact record because they are either the owner or have Modify All Data permission respectively. Users above or below the sales manager in the role hierarchy will not be able to edit this contact record because contacts are controlled by parent and accounts are set to Public Read Only. All users in the organization will be able to view but not edit this contact record because accounts are set to Public Read Only. Reference: https://help.salesforce.com/s/articleView?id=sf.admin_sharing.htm&type=5