---
type: source
title: Groupware: Group Calendars (Gruppenkalender)
tags: [groupware, calendar, collaboration]
related: [gruppenkalender, groupware, ums]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_dienste_webdienste_groupware_module_kalender_gruppenkalende.md"]
---

# Groupware: Group Calendars (Gruppenkalender)

This source provides operational guidelines and documentation on the use, provisioning, and administration of group calendars within the university's Groupware environment/platform. It distinguishes between group calendars and calendar resources, outlines the request process via the UMS, and warns of a critical naming convention required to prevent automatic deletion.

## Key Information
- **Purpose:** Intended for organizational planning (e.g., vacation calendars, on-call schedules, shift plans).
- **Provisioning:** Group calendars are not created automatically; they must be requested as a resource via the [[ums]].
- **Administration:** The [[universitatsrechenzentrum-urz]] creates the calendar and grants administrative rights to the requester, who then manages permissions and properties.
- **Technical/Critical Constraint:** Group calendars are identified by the prefix `gr_`. Calendars must retain this prefix; renaming the calendar to remove or change the `gr_` prefix will result in the **automatic deletion** of the calendar from the system.

## Usage Recommendations
- **Recommended for:** 
    - Vacation calendars
    - On-call calendars
    - Shift plans
- **Not recommended for:** 
    - Department meetings (personal calendars with invitations are preferred).
    - Room or equipment bookings (dedicated [[kalender-ressource]] should be used instead).