---
type: concept
title: Account Exchange
tags: [account-management, identity-management, personnel-data]
related: [zentraler-nutzeraccount, universitatsmedizin, groupware]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_zentraler_nutzeraccount_accountaustausch.md"]
---

# Account Exchange

**Account Exchange** (*Accountaustausch*) is the administrative process of transferring a previous [[zentraler-nutzeraccount]] to a new employment relationship when a user moves between the **Universität Greifswald** and the **Universitätsmedizin**.

## Necessity of the Process
Because the University and the University Medicine are separate legal employers, they maintain independent personnel datasets. Consequently, a user switching between these institutions is automatically assigned a new account. The account exchange process allows the [[universitatsrechenzentrum-urz]] to merge these identities to maintain continuity of access and data.

## Verification and Constraints
To prevent incorrect account merges, the URZ requires unique person identification using:
- Full Name
- Date of Birth

### The University $\leftrightarrow$ University Medicine Workaround
Since the **Universitätsmedizin** does not provide dates of birth to the URZ, a "dual-ticket" verification method is used via [[groupware]]:
1. **Ticket 1**: Created while logged into the University account, requesting the merge with the University Medicine account.
2. **Ticket 2**: Created while logged into the University Medicine account, requesting the merge with the University account.

## Technical Limitations
Account exchange is only possible between different employment relationships (Staff $\leftrightarrow$ Staff). It is **technically impossible** to perform an account exchange between a staff account (*Mitarbeiteraccount*) and a student account (*Studentenaccount*).
