diff --git a/x-pack/legacy/plugins/siem/public/pages/case/components/configure_cases/button.tsx b/x-pack/legacy/plugins/siem/public/pages/case/components/configure_cases/button.tsx
index 9cfc51da22e87..b0bea83148bda 100644
--- a/x-pack/legacy/plugins/siem/public/pages/case/components/configure_cases/button.tsx
+++ b/x-pack/legacy/plugins/siem/public/pages/case/components/configure_cases/button.tsx
@@ -31,6 +31,7 @@ const ConfigureCaseButtonComponent: React.FC = ({
href={getConfigureCasesUrl(urlSearch)}
iconType="controlsHorizontal"
isDisabled={isDisabled}
+ aria-label={label}
>
{label}
diff --git a/x-pack/legacy/plugins/siem/public/pages/case/components/tag_list/index.tsx b/x-pack/legacy/plugins/siem/public/pages/case/components/tag_list/index.tsx
index 0bfb0a4cb8831..f7d890ca60b16 100644
--- a/x-pack/legacy/plugins/siem/public/pages/case/components/tag_list/index.tsx
+++ b/x-pack/legacy/plugins/siem/public/pages/case/components/tag_list/index.tsx
@@ -66,7 +66,7 @@ export const TagList = React.memo(
diff --git a/x-pack/legacy/plugins/siem/public/pages/case/components/user_list/index.tsx b/x-pack/legacy/plugins/siem/public/pages/case/components/user_list/index.tsx
index e9865baa1cd0e..579e8e48fa147 100644
--- a/x-pack/legacy/plugins/siem/public/pages/case/components/user_list/index.tsx
+++ b/x-pack/legacy/plugins/siem/public/pages/case/components/user_list/index.tsx
@@ -5,6 +5,8 @@
*/
import React, { useCallback } from 'react';
+import { isEmpty } from 'lodash/fp';
+
import {
EuiButtonIcon,
EuiText,
@@ -15,9 +17,10 @@ import {
EuiLoadingSpinner,
EuiToolTip,
} from '@elastic/eui';
+
import styled, { css } from 'styled-components';
-import { ElasticUser } from '../../../../containers/case/types';
+import { ElasticUser } from '../../../../containers/case/types';
import * as i18n from './translations';
interface UserListProps {
@@ -52,7 +55,7 @@ const renderUsers = (
- {fullName ?? username}
}>
+ {fullName ? fullName : username ?? ''}}>
{username}
@@ -67,8 +70,8 @@ const renderUsers = (
data-test-subj="user-list-email-button"
onClick={handleSendEmail.bind(null, email)}
iconType="email"
- aria-label="email"
- isDisabled={email == null}
+ aria-label={i18n.SEND_EMAIL_ARIA(fullName ? fullName : username ?? '')}
+ isDisabled={isEmpty(email)}
/>