---
type: concept
title: Profile Synchronization
tags: [identity-management, synchronization, groupware]
related: [zentraler-nutzeraccount, groupware, ums]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_dienste_webdienste_groupware_grundlegende_einstellungen.md"]
---

# Profile Synchronization

**Profile Synchronization** is the technical process by which personal user data and identity markers are automatically transferred from a central authentication system to a downstream service, such as [[groupware]].

## Mechanism in Groupware
In the context of the university's Groupware platform, synchronization ensures that user data remains consistent with the central university records.

### Key Characteristics
- **Authoritative Source**: The central authentication system (managed via [[ums]]) is the single source of truth.
- **Read-Only Nature**: Because the synchronization occurs upon login, any manual changes made by the user within the Groupware profile are temporary.
- **Overwriting**: At the next authentication event (login), the system pulls the latest data from the central server and overwrites any local modifications.
- **Identity Mapping**: Specific attributes, such as the **Primary Email Address**, are mapped from the UMS to the Groupware profile to ensure a consistent identity across the Campus-IT ecosystem.