Available in: Salesforce Classic Data categories and answers are available in Enterprise, Performance, Unlimited, and Developer editions. Salesforce Knowledge is available in Performance and Developer editions. Salesforce Knowledge is available for an additional cost in Enterprise and Unlimited editions. User Permissions Needed To view the Data Categories page: “View Data Categories” To create, edit, or delete data categories: “Manage Data Categories”
In all cases, the articles retain their categories from other category groups.