360 feedback
Open Feedback to request input on a person in a cycle. Recipients get a link to record ratings and comments. This offer is a single 360 request flow, not a multi-wave campaign product.
Anonymity
Anonymity is enforced in the data-access layer, not only in the UI. Reviewers who should not see rater identity do not receive those fields from the service. Item-level permissions on 360 rows further limit who can open a response.
1:1s and check-ins
1:1s store agenda, notes, and a meeting date on SharePoint lists. The app does not request Calendars.ReadWrite. Check-ins are a short pulse between scheduled 1:1s. Create a 1:1 from the header action on that page.