> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/9.3-data-integration/pdi-transformation-steps-reference-overview/write-metadata/options-write-metadata-step/metadata-tab-write-metadata-step.md).

# Metadata tab

In this tab, specify any of the existing metadata tags you want to associate with the data resources identified in the **Input** tab. This PDI option matches the **Add a tag** feature for a data resource in the Data Catalog.

For example, if your transformation uses the Catalog Input step to create or update a data resource in Data Catalog, you could use this step to inject resource IDs into your transformation and add tags to those data resources.

![Metadata tab](/files/UmZXr9fe8xbxxDyJYuJb)

Use the drop-down menu to select a tag, or several tags, from the existing tags that are available through your Data Catalog connection. Enter a description for this tag or group of tags in the **Description** field, or edit the existing description.

| Field           | Description                                                                                            |
| --------------- | ------------------------------------------------------------------------------------------------------ |
| **Description** | Type or revise the description for the tag or group of tags you selected with the **Tags** option.     |
| **Tags**        | Select any existing tags you want associated with, and assigned to, the resource ID and click **ADD**. |

**Note:** If missing or incomplete data is returned, you may need to change the default limit for returned results. See [Data Catalog searches returning incomplete or missing data](/pdia-data-integration/9.3-data-integration/data-integration-issues/lumada-data-catalog-searches-returning-incomplete-or-missing-data.md) for information.


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