---
alias: user-guide-close-data-collection-instance
tags:
- data collection
description: "Close an open data collection instance to terminate its long-running process"
---

# Close Data Collection Instance

:lock: DataCollectionInstance.**Close**

## Overview

This operation closes an open long running **Data Collection** instance.  

## Setup

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

## Preconditions

* The State of the **Data Collection** Instance is Open.

## Sequence of Steps

The **Edit Data Collection** wizard can be called from the **Data Collection** page within the Business Data Group.

### Step 1: General Data

1. Optionally enter a comment.
2. Select **Close** to complete the transaction.

!!! note
    Limit evaluation at close depends on both limit checking settings configured in the **Data Collection**:

    * Data Collection - On Close: warning and error limits are evaluated when the instance is closed, and any configured protocols are opened at that time.
    * Data Collection - On Post: limit violations are typically evaluated during posting, although values finalized at close can still be checked as part of the closing logic.
    * Data Collection Parameter - Individual Value: limits are checked against each value.
    * Data Collection Parameter - Calculated Value: limits are checked against the calculated value defined by the parameter calculation and grouping mode.

![Screenshot showing a UI with a button labeled "Close Data Collection instance".](../images/close_data_collection_instance.png)