# Custom Fields

Custom fields in Google Issue Tracker are fields that may be available on a
per-component basis in addition to the standard
[default fields](https://developers.google.com/issue-tracker/references/glossary-of-fields). Custom fields are created by
the Google employees who are responsible for managing a
[component](https://developers.google.com/issue-tracker/concepts/components). Public and partner users cannot create
custom fields or change which custom fields are available.

## Find custom fields

When you [create an issue](https://developers.google.com/issue-tracker/guides/create-issue-ui), any custom fields defined for the component
appear in the **Advanced fields** panel near the bottom of the page. The custom
fields are listed in alphabetical order at the end of the list of fields.

![](https://developers.google.com/issue-tracker/images/public/advanced-fields-custom-fields.png)

When you [edit an issue](https://developers.google.com/issue-tracker/guides/edit-issue-ui), custom fields appear in the **Issue fields** panel,
at the end of the list of fields.

## Hidden custom fields

When a component administrator adds custom fields to a component, they can
choose to make the fields hidden. When custom fields are hidden, they are
removed from the **Create Issue** view. In the **Edit Issue** view, hidden
custom fields are in the collapsed **Show additional fields** section at the
bottom of the **Issue fields** panel. When you expand the **Show additional
fields** section, the hidden fields can be viewed and edited.

![The show additional fields panel that appears when you edit an issue with
hidden custom fields](https://developers.google.com/issue-tracker/images/public/hidden-fields.png)

## Search for issues by custom fields

As with the standard default fields, you can search for issues by the value of a
custom field. When using a custom field as part of your
[issue search criteria](https://developers.google.com/issue-tracker/concepts/search-query-language), you must provide additional information to Issue
Tracker:

- When you search by the `customfield` field, Issue Tracker prompts you to type the name or ID of a custom field to use in your search. Once you have selected the field, complete the search criteria as you would a regular field.

## View custom fields in search results

You can add custom field columns to any [search results view](https://developers.google.com/issue-tracker/concepts/search-results):

- When you select **Custom Field** from the list of field columns to add,
  Issue Tracker prompts you to select the component to which the custom field
  belongs.

- After you select the component, a drop-down list of the custom fields for
  that component is displayed. Select the custom field you want from this list
  and **Add** it as a column.