# Update Channel Description

`Nominal Client.lvclass:metadata.update_description.vi` · Palette: [Stream](https://dev.nominal.io/ni-labview/ref/stream.md) · [Source](https://github.com/nominal-io/labview-client/blob/HEAD/lv_src/channel%20helper/metadata.update_description.vi)

![](https://dev.nominal.io/ni-labview/_images/de2ef9217f2b6c273cccc1deaad9f181_viicon.png)

![Connector pane of Update Channel Description](https://dev.nominal.io/ni-labview/_images/de2ef9217f2b6c273cccc1deaad9f181_connpane.png)

## Inputs

**Nominal Client in** required
:   `Nominal Client.lvclass`

**Channel** required
:   `Channel.lvclass`

**Description** required
:   `String`

**error in**
:   `Error cluster`

## Outputs

**Nominal Client out**
:   `Nominal Client.lvclass`

**Meta Data**
:   `Cluster (metadata.ctl)`

    - `Description` String
    - `Unit` String
    - `Data Type` String

**error out**
:   `Error cluster`