> For the complete documentation index, see [llms.txt](https://community-test.logicnets.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://community-test.logicnets.com/release-9/platform-documentation/process-node-parts/change-data-item.md).

# Change Data Item

## Description

This part, also called Change Item in Collection, allows the user to alter the value of an item in a collection.

## Use

This part allows the user to have the system change a single item in a collection instead of having to recreate the collection.

### Editor Fields

| Field Name  | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | Type/Options | Optional/Mandatory |
| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------------ |
| Data object | This is the data object that contains the new value to which the system will change the existing value in the collection.                                                                                                                                                                                                                                                                                                                                                   | Data Object  | Mandatory          |
| Group       | <p>With this option, users can create a top class, assign the data object's parent, and call the data object using the parent.<br>Example:<br>Data object: <strong>my\_data\_object</strong><br>Group: <strong>my\_group</strong><br>To use: <strong>my\_group.my\_date\_object</strong><br>"Group" can be a collection of data objects. If the "Group" field is empty, the system should call <strong>my\_data\_object</strong> directly without any parent extension.</p> | Text         | Optional           |
| Collection  | This is the collection in which the system will change a value.                                                                                                                                                                                                                                                                                                                                                                                                             | Data Object  | Mandatory          |
| Position    | This is the position number of the value to be changed.                                                                                                                                                                                                                                                                                                                                                                                                                     | Number       | Mandatory          |

### Example

For an example of how to use the Change Data Item part, download and import the following [sample project](/release-9/example-gallery/example-projects-for-parts/change-data-item-example-project.md) in your workspace.


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