---
title: Create, edit and duplicate a Link’nX scenario condition
description: Create a Link’nX condition (dates, time range, day/night or KNX value), select it in the right scenario field, then edit or duplicate it safely.
canonical: https://wiki.can-nx.com/en/guides/link-condition-edit/
language: en
product: Link’nX
audience:
  - administrateur
  - installateur
context: "Link’nX web: Conditions list, form as a full page or a panel depending on type and width"
---

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

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

A Link’nX condition restricts the circumstances in which a scenario can start: dates, days and months, time range, day or night, value of a KNX group address. It checks a criterion; it does not replace the scenario’s trigger.

Intended for administrators and installers.

## Create a condition

1. In the Link’nX navigation, open **Conditions**, then **Add**. The title **Condition creation** appears.
2. In **Select a condition type**, choose the type using the table below, which links to the guide for its criteria.
3. Fill in **Name**, required, 64 characters maximum and other than spaces. Use a name that describes the rule, for example “Reception on weekdays” as a fictitious example.
4. Fill in the criteria.
5. Click the floppy disk in the round button at the bottom right. After **Success!**, find the condition in the list.

| Condition type | Criterion and guide | Scenario field |
| --- | --- | --- |
| **Date range** | [Specific date ranges](https://wiki.can-nx.com/en/guides/link-condition-dates/) | **Date condition** |
| **Date range** | [Same periods every year](https://wiki.can-nx.com/en/guides/link-condition-annual/) | **Date condition** |
| **Days and Months** | [Weekdays and months](https://wiki.can-nx.com/en/guides/link-condition-days/) | **Date condition** |
| **Time range** | [Time range](https://wiki.can-nx.com/en/guides/link-condition-time/) | **Time condition** |
| **Day/Night** | [Day or night period](https://wiki.can-nx.com/en/guides/link-condition-sun/) | **Day/Night condition** |
| **KNX** | [Value of a group address](https://wiki.can-nx.com/en/guides/link-condition-knx/) | **KNX condition** |

## Add the condition to a scenario

A condition only takes effect if a scenario selects it: in the [scenario form](https://wiki.can-nx.com/en/guides/link-compose-scenario/), choose it in its field, then save the scenario too.

The scenario lets you choose one condition in each of the first three fields and several KNX conditions. Its selected conditions are combined with **AND**. If you need to combine two rules offered in the same single-choice field, contact support to determine the appropriate configuration. Viewing a second condition sheet does not add it to the scenario.

## Edit a condition

1. In **Conditions**, open the condition’s name or its pencil. **Condition modification** appears. **Condition type** is read-only.
2. Change the criteria, then click the floppy disk.
3. If scenarios use it, **Scenario affected by this change:** or **Scenarios affected by this change:** shows their names. Review them, then click **SAVE** to confirm, or **CANCEL** to return to the form.
4. Wait for **Updated!**: the update is then confirmed.

## Duplicate a condition

1. Open the row’s three dots, then **Duplicate**. In **Condition duplication**, the name gets the suffix **-- Copy**.
2. Replace this name, check the copied criteria, then save.
3. Add this new condition to the desired scenarios: the copy does not automatically replace the original in their selections.

## Leave the form without losing changes

The edit or duplication may open in a panel or as a full page, depending on the type and the screen width. **Edit in full page** lets you reach the full page from the panel. Save with the floppy disk before closing, changing row or changing layout: this way you review the affected scenarios before confirming.

To discard the changes, return to the list without saving. If **Unsaved changes** appears, **Cancel** keeps the form and **Don't save** confirms discarding. To keep the changes, stay in the form and use its floppy disk.

## Check the result

- To know whether your changes are saved, rely on the **Success!** and **Updated!** messages rather than on whether the **Unsaved changes** warning appears.
- Reopen the condition from the list and review its criteria.

## Troubleshooting

- The save does not go through: check the name, the type-specific fields and the confirmation of the affected scenarios.
- **Issue with field 'Name'.**: enter a non-empty name.
- An error remains unexplained: do not change other conditions to work around it.

If the result remains uncertain, contact support@can-nx.com with the condition type, its name, the context, the message and the step.