diff --git a/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/hooks.ts b/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/hooks.ts
new file mode 100644
index 00000000000..b90592a86c4
--- /dev/null
+++ b/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/hooks.ts
@@ -0,0 +1,97 @@
+import { emailRegEx } from '@logto/core-kit';
+import { conditional, conditionalArray, conditionalString } from '@silverhand/essentials';
+import { useCallback, useContext } from 'react';
+import { useTranslation } from 'react-i18next';
+import useSWR from 'swr';
+
+import { useAuthedCloudApi } from '@/cloud/hooks/use-cloud-api';
+import { type TenantMemberResponse } from '@/cloud/types/router';
+import { TenantsContext } from '@/contexts/TenantsProvider';
+import { type RequestError } from '@/hooks/use-api';
+
+import { type InviteeEmailItem } from '../types';
+
+const useEmailInputUtils = () => {
+  const cloudApi = useAuthedCloudApi();
+  const { currentTenantId } = useContext(TenantsContext);
+  const { t } = useTranslation(undefined, { keyPrefix: 'admin_console' });
+
+  const { data: existingMembers = [] } = useSWR<TenantMemberResponse[], RequestError>(
+    `api/tenant/${currentTenantId}/members`,
+    async () =>
+      cloudApi.get('/api/tenants/:tenantId/members', { params: { tenantId: currentTenantId } })
+  );
+
+  /**
+   * Find duplicated and invalid formatted email addresses.
+   *
+   * @param emails Array of email emails.
+   * @returns
+   */
+  const findDuplicatedOrInvalidEmails = useCallback(
+    (emails: string[] = []) => {
+      const duplicatedEmails = new Set<string>();
+      const invalidEmails = new Set<string>();
+      const validEmails = new Set<string>(
+        existingMembers.map(({ primaryEmail }) => primaryEmail ?? '').filter(Boolean)
+      );
+
+      for (const email of emails) {
+        if (!emailRegEx.test(email)) {
+          invalidEmails.add(email);
+        }
+
+        if (validEmails.has(email)) {
+          duplicatedEmails.add(email);
+        } else {
+          validEmails.add(email);
+        }
+      }
+
+      return {
+        duplicatedEmails,
+        invalidEmails,
+      };
+    },
+    [existingMembers]
+  );
+
+  const parseEmailOptions = useCallback(
+    (
+      inputValues: InviteeEmailItem[]
+    ): {
+      values: InviteeEmailItem[];
+      errorMessage?: string;
+    } => {
+      const { duplicatedEmails, invalidEmails } = findDuplicatedOrInvalidEmails(
+        inputValues.map((email) => email.value)
+      );
+      // Show error message and update the inputs' status for error display.
+      if (duplicatedEmails.size > 0 || invalidEmails.size > 0) {
+        return {
+          values: inputValues.map(({ status, ...rest }) => ({
+            ...rest,
+            ...conditional(
+              (duplicatedEmails.has(rest.value) || invalidEmails.has(rest.value)) && {
+                status: 'info',
+              }
+            ),
+          })),
+          errorMessage: conditionalArray(
+            conditionalString(duplicatedEmails.size > 0 && t('tenant_members.errors.user_exists')),
+            conditionalString(invalidEmails.size > 0 && t('tenant_members.errors.invalid_email'))
+          ).join(' '),
+        };
+      }
+
+      return { values: inputValues };
+    },
+    [findDuplicatedOrInvalidEmails]
+  );
+
+  return {
+    parseEmailOptions,
+  };
+};
+
+export default useEmailInputUtils;
diff --git a/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/index.tsx b/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/index.tsx
index 393e55035c1..78cd717c93e 100644
--- a/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/index.tsx
+++ b/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/index.tsx
@@ -12,8 +12,8 @@ import { onKeyDownHandler } from '@/utils/a11y';
 
 import type { InviteeEmailItem, InviteMemberForm } from '../types';
 
+import useEmailInputUtils from './hooks';
 import * as styles from './index.module.scss';
-import { emailOptionsParser } from './utils';
 
 type Props = {
   className?: string;
@@ -34,9 +34,10 @@ function InviteEmailsInput({
   const [focusedValueId, setFocusedValueId] = useState<Nullable<string>>(null);
   const [currentValue, setCurrentValue] = useState('');
   const { setError, clearErrors } = useFormContext<InviteMemberForm>();
+  const { parseEmailOptions } = useEmailInputUtils();
 
   const onChange = (values: InviteeEmailItem[]) => {
-    const { values: parsedValues, errorMessage } = emailOptionsParser(values);
+    const { values: parsedValues, errorMessage } = parseEmailOptions(values);
     if (errorMessage) {
       setError('emails', { type: 'custom', message: errorMessage });
     } else {
diff --git a/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/utils.ts b/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/utils.ts
deleted file mode 100644
index 41edc4645de..00000000000
--- a/packages/console/src/pages/TenantSettings/TenantMembers/InviteEmailsInput/utils.ts
+++ /dev/null
@@ -1,68 +0,0 @@
-import { emailRegEx } from '@logto/core-kit';
-import { conditional, conditionalArray, conditionalString } from '@silverhand/essentials';
-import { t as globalTranslate } from 'i18next';
-
-import { type InviteeEmailItem } from '../types';
-
-export const emailOptionsParser = (
-  inputValues: InviteeEmailItem[]
-): {
-  values: InviteeEmailItem[];
-  errorMessage?: string;
-} => {
-  const { duplicatedEmails, invalidEmails } = findDuplicatedOrInvalidEmails(
-    inputValues.map((email) => email.value)
-  );
-  // Show error message and update the inputs' status for error display.
-  if (duplicatedEmails.size > 0 || invalidEmails.size > 0) {
-    return {
-      values: inputValues.map(({ status, ...rest }) => ({
-        ...rest,
-        ...conditional(
-          (duplicatedEmails.has(rest.value) || invalidEmails.has(rest.value)) && {
-            status: 'info',
-          }
-        ),
-      })),
-      errorMessage: conditionalArray(
-        conditionalString(
-          duplicatedEmails.size > 0 &&
-            globalTranslate('admin_console.tenant_members.errors.user_exists')
-        ),
-        conditionalString(
-          invalidEmails.size > 0 &&
-            globalTranslate('admin_console.tenant_members.errors.invalid_email')
-        )
-      ).join(' '),
-    };
-  }
-
-  return { values: inputValues };
-};
-
-/**
- * Find duplicated and invalid formatted email addresses.
- *
- * @param emails Array of email emails.
- * @returns
- */
-const findDuplicatedOrInvalidEmails = (emails: string[] = []) => {
-  const duplicatedEmails = new Set<string>();
-  const invalidEmails = new Set<string>();
-  const validEmails = new Set<string>();
-
-  for (const email of emails) {
-    if (!emailRegEx.test(email)) {
-      invalidEmails.add(email);
-    }
-
-    if (validEmails.has(email)) {
-      duplicatedEmails.add(email);
-    }
-  }
-
-  return {
-    duplicatedEmails,
-    invalidEmails,
-  };
-};
diff --git a/packages/console/src/pages/TenantSettings/TenantMembers/InviteMemberModal/index.tsx b/packages/console/src/pages/TenantSettings/TenantMembers/InviteMemberModal/index.tsx
index a3197807e6a..69db6b0520f 100644
--- a/packages/console/src/pages/TenantSettings/TenantMembers/InviteMemberModal/index.tsx
+++ b/packages/console/src/pages/TenantSettings/TenantMembers/InviteMemberModal/index.tsx
@@ -15,7 +15,7 @@ import Select, { type Option } from '@/ds-components/Select';
 import * as modalStyles from '@/scss/modal.module.scss';
 
 import InviteEmailsInput from '../InviteEmailsInput';
-import { emailOptionsParser } from '../InviteEmailsInput/utils';
+import useEmailInputUtils from '../InviteEmailsInput/hooks';
 import { type InviteMemberForm } from '../types';
 
 type Props = {
@@ -37,6 +37,7 @@ function InviteMemberModal({ isOpen, onClose }: Props) {
 
   const [isLoading, setIsLoading] = useState(false);
   const cloudApi = useAuthedCloudApi();
+  const { parseEmailOptions } = useEmailInputUtils();
 
   const formMethods = useForm<InviteMemberForm>({
     defaultValues: {
@@ -123,7 +124,7 @@ function InviteMemberModal({ isOpen, onClose }: Props) {
                   if (value.length === 0) {
                     return t('errors.email_required');
                   }
-                  const { errorMessage } = emailOptionsParser(value);
+                  const { errorMessage } = parseEmailOptions(value);
                   // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
                   return errorMessage || true;
                 },
diff --git a/packages/phrases/src/locales/de/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/de/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/de/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/de/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/en/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/en/translation/admin-console/tenant-members.ts
index 5acf64b2fa0..c4bdafe913e 100644
--- a/packages/phrases/src/locales/en/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/en/translation/admin-console/tenant-members.ts
@@ -50,7 +50,7 @@ const tenant_members = {
   },
   errors: {
     email_required: 'Invitee email is required.',
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     max_member_limit: 'You have reached the maximum number of members ({{limit}}) for this tenant.',
   },
diff --git a/packages/phrases/src/locales/es/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/es/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/es/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/es/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/fr/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/fr/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/fr/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/fr/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/it/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/it/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/it/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/it/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/ja/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/ja/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/ja/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/ja/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/ko/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/ko/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/ko/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/ko/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/pl-pl/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/pl-pl/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/pl-pl/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/pl-pl/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/pt-br/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/pt-br/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/pt-br/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/pt-br/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/pt-pt/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/pt-pt/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/pt-pt/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/pt-pt/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/ru/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/ru/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/ru/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/ru/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/tr-tr/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/tr-tr/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/tr-tr/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/tr-tr/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/zh-cn/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/zh-cn/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/zh-cn/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/zh-cn/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/zh-hk/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/zh-hk/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/zh-hk/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/zh-hk/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */
diff --git a/packages/phrases/src/locales/zh-tw/translation/admin-console/tenant-members.ts b/packages/phrases/src/locales/zh-tw/translation/admin-console/tenant-members.ts
index 9a9531f3542..0b64b99cd40 100644
--- a/packages/phrases/src/locales/zh-tw/translation/admin-console/tenant-members.ts
+++ b/packages/phrases/src/locales/zh-tw/translation/admin-console/tenant-members.ts
@@ -87,7 +87,7 @@ const tenant_members = {
     /** UNTRANSLATED */
     email_required: 'Invitee email is required.',
     /** UNTRANSLATED */
-    user_exists: 'This user is already in this organization.',
+    user_exists: 'This user is already invited to this organization.',
     /** UNTRANSLATED */
     invalid_email: 'Email address is invalid. Please make sure it is in the right format.',
     /** UNTRANSLATED */