Teamup provides 9 access permission levels for customizing access. This article describes the four advanced access permissions. Calendar administrators can assign or change access permissions for users, groups, and shareable links.
Advanced access permissions
Add-only
Allows adding new events. Existing events stay as read-only and cannot be changed. Newly added events can be modified only during a single, time-limited browser session (approx. 30 minutes).
Add-only, no details
Same as add-only, but event details are hidden. The newly added event remains editable until the current session expires, then it becomes read-only.
Modify my events
When assigned to a shareable link: Modify from same link
Allows adding new events and editing existing events that have been created by the user or by using the same calendar link. Otherwise the entries are read-only.
Modify my events, no details
When assigned to a shareable link: Modify from same link, no details
Same as Modify my events but details for existing events are shown only if they were created by the same user or using the same link; otherwise, the event details are hidden.
Add-only permission
The add-only permission is helpful when users contribute events to the calendars, but should not modify existing events.
- The add-only permission could be shared with a large group or used on a calendar link for an embedded calendar and/or as part of an approval system. Everyone accessing the calendar with add-only permission can then add events but not change events added by others.
- The creator of an event can edit their event submission during the current browser session up to 30 minutes. Once the current session is expired, the newly added event becomes read-only to all.
Hide or show details
With the add-only permissions, you can choose whether to show details of events created by other calendar users, or hide those details.
- The add-only permission will show details of all calendar events.
- The add-only, no details permission will hide details of calendar events created by other users.
Add-only scenarios
Frequent scenarios when the add-only permission is useful:
- Local community events (e.g. sports, entertaining, church services).
- Facility or equipment reservations open to a large community
- Volunteer signups for non-profit or social events
- Group diary or record keeping of staff and shift schedules
- Collective updates by geographically dispersed teams on a shared calendar
This guide explains how to use add-only permission to set up an approval system.
Modify my events permission
Some advantages of using the modify my events permission:
- Users with the modify my events permission can create, modify, and delete events, but only events they created, not those of others. This reduces the amount of unintentional deletions or modifications.
- A single user can have modify my events permission for certain sub-calendars, and another permission type for other sub-calendars, making calendar access highly flexible. For example, a team member could have modify access to their own sub-calendar, and modify my events permission to the shared team calendar.
Modify from same link
If you are sharing a calendar via a shareable calendar link, the permission level is called Modify from same link.
Note that if multiple users use the same calendar link, they will all be able to modify all the events added by each other. To avoid this situation, either a) create a unique calendar link for each user, or b) share the calendar with account-based access and use the Modify my events permission. Account-based access is recommended as it is more secure and convenient.
Hide or show details
With the Modify my events permissions, you can choose whether to show details of events created by other calendar users, or hide those details.
- Modify my events (or Modify from same link) includes all event details.
- Modify my events, no details (or Modify from same link, no details) hides the details on events created by other users or link. These events are shown only as Reserved.
Modify my events scenarios
The Modify my events permission option is useful in cases like these:
- When a calendar needs to be modified by multiple users, e.g. Engineering services performed at customer sites, such as technical installations and maintenance.
- When each user needs to add and make changes to events that they created, e.g. Freelancing professional services, such as coaching, training, project management, etc.
- When users need to add or modify their own events, but not those created by others, e.g. Shared meeting rooms in office buildings available for booking by multiple tenants.
- Teamup makes it easy to deactivate, reactivate, or delete users, groups, and shareable links at anytime. This makes the modify my events option helpful for ad-hoc coordination needs.
With visible details
This permission option is particularly useful for closed communities that want to:
- share resources transparently
- resolve possible conflicts
- communicate efficiently.
Examples:
- Class reservations of school computer labs.
- Conference room reservations in companies.
- Shared equipment or space bookings for sports clubs.
- Boat reservations in homeowner communities.
See this Live Demo to play around with this type of calendar permission in action.
No details
This permission is particularly useful for small businesses and service providers, when client privacy is important. If it is necessary to coordinate service schedules with multiple suppliers and customers, this permission allows you to do so while still maintaining the privacy of individual client or partners.
Mixed permissions
In many cases, calendar users need a different permissions for different sub-calendars, as appropriate for their role. 
In the example above, team member Kelly has mixed permissions:
- Modify permission to her own sub-calendar,
- Modify my events, no details permission for the Appointments calendar,
- Modify my events permission for the Availability calendar, and
- Read-only permission for her colleagues’ sub-calendars.