# Missing on\_calendar\_event\_duplicate in docs

**URL:** https://forums.concretecms.org/t/missing-on-calendar-event-duplicate-in-docs/8915
**Category:** Documentation
**Created:** [March 28, 2025, 5:31pm UTC](https://forums.concretecms.org/t/missing-on-calendar-event-duplicate-in-docs/8915 "2025-03-28T17:31:10Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![triplei](https://forums.concretecms.org/user_avatar/forums.concretecms.org/triplei/32/3589_2.png) [@triplei](https://forums.concretecms.org/u/triplei)
#### Post date: [March 28, 2025, 5:31pm UTC](https://forums.concretecms.org/t/missing-on-calendar-event-duplicate-in-docs/8915/1 "2025-03-28T17:31:10Z")

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On the application events page: [Application Events :: Concrete CMS](https://documentation.concretecms.org/9-x/developers/security/events) it appears there is no reference to the `on_calendar_event_duplicate` event which is fired here: [concretecms/concrete/src/Calendar/Event/EventService.php at 9.4.x · concretecms/concretecms · GitHub](https://github.com/concretecms/concretecms/blob/9.4.x/concrete/src/Calendar/Event/EventService.php#L226-L229)

Just thought I’d mention it as it may be useful for others as well 🙂

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### Author: ![Myq](https://forums.concretecms.org/user_avatar/forums.concretecms.org/myq/32/4281_2.png) [@Myq](https://forums.concretecms.org/u/Myq)
#### Post date: [April 7, 2025, 7:26pm UTC](https://forums.concretecms.org/t/missing-on-calendar-event-duplicate-in-docs/8915/2 "2025-04-07T19:26:50Z")

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Thanks for reporting that. Updated the docs to include that.