nextcloud / nextcloud/calendar
Updating a event sends "canceled" notification to participants
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- Dominant language
- JavaScript
- Stars
- 1.2k
- Forks
- 332
- Avg merge
- 16h 13m
- Merged PRs (30d)
- 137
Description
Steps to reproduce
- Create a calendar invitation, in my case I used the "appointment booking"-feature. But with regular invitation you should see the same effect
- As the owner of the event, edit it (e.g. add a talk room to the location)
- Check the mail account from the invited person
Expected behavior
The invited person gets an update of the appointment
Actual behaviour
The actual behavior depends on how I edit the event:
edit it with the Nextcloud calendar app
If I edit it with the Nextcloud calendar app in the browser no mail is send at all. So the participants never get notified about the changes
Edit it with Thunderbird 102.4.1
The result depends now on the Thunderbird calendar setting (right click on the calendar -> properties)
My default:

By default I tell Thunderbird that it should send invitation mails client-side because this way the recipient get a more "standard" invitation but not our html mail.
Surprisingly in this case a "cancel" mail from the Nextcloud server is triggered:

If I change the settings above and uncheck "prefer client-side email scheduling". No mail at all is send. Same as when I edit the event with the calendar app in the browser.
Calendar app version
4.1.0
CalDAV-clients used
Thunderbird 102.4.1
Browser
No response
Client operating system
Fedora
Server operating system
cloud.nextcloud.com
Web server
No response
Database engine version
No response
PHP engine version
No response
Nextcloud version
25.0.1
Updated from an older installed version or fresh install
No response
List of activated apps
No response
Nextcloud configuration
No response
Web server error log
No response
Log file
No response
Browser log
No response
Additional info
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the issue using the Nextcloud Calendar app and Thunderbird 102.4.1, comparing both Thunderbird email-scheduling settings. Verify the behavior for an owner editing an invited event: recipients should receive an update notification, not a cancellation or no message.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100