Writable and read-only calendars

A writable calendar can receive new Events and calendar-assigned Tasks. Harmonise calendars are writable. A connected calendar is writable only when Google, Outlook, Apple, Yahoo, or a compatible CalDAV server reports edit access.

A Read-only label means the connected account can view the calendar but cannot change it. Read-only calendars can provide planning context, but they cannot become the default or receive creates, edits, or deletes from Harmonise.

Common examples include:

Calendar	Typical access in Harmonise
A personal Harmonise calendar	Writable
A provider calendar with edit access	Writable when the provider grants edit access
A shared team calendar	Writable or read-only, depending on the provider permission
A holidays, recommended, or subscribed calendar	Usually read-only
A provider calendar without edit permission	Read-only until its provider permission changes

On mobile

The calendar picker excludes or disables invalid destinations. In Settings > Calendars, read-only provider calendars show their access state. If access changed at the provider, use Refresh calendars for the connection and check again.

On web

Settings shows a Read-only badge and disables Set Default for that calendar. Writable Events can be created, edited, and deleted from Harmonise; open an Event and choose Edit event when the Event is writable. Standalone Tasks still require a calendar supplied by their creation screen. Use Refresh calendars after changing provider permissions.

Harmonise cannot turn a provider calendar writable locally. If you need edit access, change its sharing permission in the provider or ask the owner, then refresh the connection. Otherwise, create the item in an editable Harmonise calendar.