---
title: Create, edit and duplicate a Link’nX scenario trigger
description: Create a Link’nX trigger (time, sun, HTTP, KNX or device event), add it to a scenario, then edit it while confirming affected scenarios, or duplicate it.
canonical: https://wiki.can-nx.com/en/guides/link-trigger-edit/
language: en
product: Link’nX
audience:
  - administrateur
  - installateur
context: "Link’nX web: Triggers list, form as a full page or a panel depending on type and width"
---

# Create, edit and duplicate a Link’nX scenario trigger

Context: Link’nX web: Triggers list, form as a full page or a panel depending on type and width

In Link’nX, a trigger is the event that requests a scenario start: a set time, sunrise or sunset, an HTTP call, a KNX write or an event from an integrated device. It is created in the **Triggers** list, then selected in one or more scenarios.

Intended for administrators and installers who prepare the events of their automations. First check the project and the gateway shown.

## Create a trigger

1. Open **Triggers** in the navigation, then **Add**. The page shows **Trigger creation**.
2. Open **Select a trigger type**. The types are grouped, notably in **Protocols** and **Schedule**. **Search a type...** filters their names and accepts a search without accents. Click the desired type.
3. Fill in **Name**: required, 64 characters maximum, not only spaces. For a KNX trigger, this field is in its specific form.
4. Fill in the parameters of the chosen type, described in the guide given in the table below. If you change the type during creation, check its parameters again.
5. Click the floppy disk in the round button at the bottom right. Wait for **Success!**, then find the trigger in the list.

If **No matching type** appears, no offered choice matches the search: clear it before concluding that a type is missing. The integration types offered may depend on the enabled options; do not change other parameters to make a choice appear.

## Find the guide for each trigger type

| Type or device | Guide |
| --- | --- |
| **Timed** | [Trigger at a set time](https://wiki.can-nx.com/en/guides/link-trigger-time/) |
| **Sun event** | [Trigger at sunrise or sunset](https://wiki.can-nx.com/en/guides/link-trigger-sun/) |
| **HTTP** | [Trigger from an HTTP URL](https://wiki.can-nx.com/en/guides/link-trigger-http/) |
| **KNX** | [Trigger on a KNX group address](https://wiki.can-nx.com/en/guides/link-trigger-knx/) |
| Intercoms and cameras | [Local DoorBird events](https://wiki.can-nx.com/en/guides/link-doorbird-local-automation/), [2N](https://wiki.can-nx.com/en/guides/link-2n-automation/), [Hikvision](https://wiki.can-nx.com/en/guides/link-hik-automation/), [Reolink](https://wiki.can-nx.com/en/guides/link-reolink-automation/), [UniFi Protect](https://wiki.can-nx.com/en/guides/link-unifi-protect-automation/) |
| UniFi Access and UniFi Network | [Access events and filters](https://wiki.can-nx.com/en/guides/link-unifi-access-events-knx/), [Network presence](https://wiki.can-nx.com/en/guides/link-unifi-network-presence-knx/) |
| Somfy | [Triggers on Somfy states](https://wiki.can-nx.com/en/guides/link-somfy-triggers/) |

## Add the trigger to a scenario

A trigger only takes effect once it is associated with a scenario. Creating it does not add it to any scenario: [select it in the relevant scenario](https://wiki.can-nx.com/en/guides/link-compose-scenario/), then save that scenario.

## Edit a trigger

1. In the list, open the trigger’s name or pencil. **Trigger modification** appears. Its **Trigger type** is read-only; the tooltip shows **Impossible to modify the type when editing**.
2. Change its parameters, then click the floppy disk.
3. If it is used by scenarios, the **Scenario affected by this change:** or **Scenarios affected by this change:** window shows their names. Review this list, then click **SAVE** to confirm the update, or **CANCEL** to return to the form.
4. Wait for **Updated!**.

Before opening the editor, you can [view the linked scenarios](https://wiki.can-nx.com/en/guides/link-related-scenarios/).

## Duplicate a trigger

1. Open the row’s three dots, then **Duplicate**. The title **Trigger duplication** and the suffix **-- New Copy** in the name identify the copy.
2. Replace this name, check all the copied parameters, then save.
3. Add the copy to the scenarios that must use it: it is a separate trigger.

## Save before leaving the form

Depending on the screen width and the trigger type, editing or duplication may open in a panel next to the list.

- In the panel, **Edit in full page** opens the editor as a full page. No confirmation of unsaved changes is offered there: save before closing the panel, choosing another row or changing the layout.
- On the full page, leaving a modified form opens **Unsaved changes**: **Cancel** keeps the form, **Don't save** discards the changes, **Save** attempts to save before leaving. If **Save** leaves you in the form of a trigger linked to scenarios, use its floppy disk, then confirm **SAVE** in the list of affected scenarios.

The [sun event trigger guide](https://wiki.can-nx.com/en/guides/link-trigger-sun/) covers the particular case of the shared location.

## Check the result

After **Success!** or **Updated!**, find the trigger in the list and reopen it to review its name and parameters. Then check that it is selected in the scenarios that must use it.

## Troubleshooting

- **Issue with field 'Name'.**: check the name and its length, especially after a duplication.
- **SAVE** does not confirm a change: also check the required fields of the type concerned.
- A type is still missing after clearing the search, a device is missing or the save does not go through: contact support@can-nx.com with the product, the context, the type and the message displayed.