---
alias: user-guide-close-experiment
description: "This documentation details the process of closing an active experiment with defined results"
---

# Close Experiment

:lock: Experiment.**Close**

## Overview

This operation is used to close an **Experiment**.

## Setup

No special setup is required other than to meet the preconditions of the transaction.

## Preconditions

* The Experiment exists, is Active and is in the system state Completed.

## Sequence of Steps

### Step 1

1. Select an **Experiment**. To be able to close it, it needs to be active and in state Completed.
2. Optionally, before closing the **Experiment**, you can:
    * Edit the Result, choosing one of the following Experiment Results:
        * Success
        * Failure
        * Inconclusive
    * Add a Conclusion.
    * Enter a comment.
3. Select **Close**. The system will confirm that the **Experiment** has been closed successfully.

!!! note "Automatic Experiment Closure"

    The Experiment closure can also be done automatically if the new Experiment Definition has been configured as "Close Experiment Automatically = `true`". In this case, after all Materials/Sub-Materials have performed all the actions in all the Steps, the Experiment will be closed automatically. However, it can still be edited before being closed by the system.

    When a Material moves out of the last Experiment Step and the Experiment closes automatically, applicable Future Actions still execute at the destination Step. For example, a Skip Process Future Action can change the Material's state from Queued to Processed upon arrival at a skippable Step. For more information, see [[manage-material-future-actions]].

![Screenshot showing the Close Experiment wizard.](../images/experiment_close.png)