diff --git a/src/components/layout/AppSidebar.tsx b/src/components/layout/AppSidebar.tsx
index 7e5f5c4..bf50fcf 100644
--- a/src/components/layout/AppSidebar.tsx
+++ b/src/components/layout/AppSidebar.tsx
@@ -1,3 +1,4 @@
+import { openSupportTicketPortal, prefetchSupportUrl } from '@/lib/support'
 import { NavLink, useLocation } from 'react-router-dom'
 import { Ic, type IconName } from '@/icons'
 import {
@@ -28,6 +29,7 @@ function BillingSidebarBadges() {
   const { t } = useTranslation()
 
   React.useEffect(() => {
+    prefetchSupportUrl()
     fetchCounts()
     // Poll every 30 seconds for live updates
     const interval = setInterval(fetchCounts, 30000)
@@ -268,6 +270,19 @@ function NavItem({ item }: { item: NavItemConfig }) {
       )}
     </>
   )
+  if (item.isExternalSupport) {
+    return (
+      <SidebarMenuItem>
+        <SidebarMenuButton
+          tooltip={item.title}
+          onClick={() => openSupportTicketPortal()}
+          className="cursor-pointer text-primary hover:bg-primary/10"
+        >
+          {inner}
+        </SidebarMenuButton>
+      </SidebarMenuItem>
+    )
+  }
 
   return (
     <SidebarMenuItem>
diff --git a/src/config/navigation.ts b/src/config/navigation.ts
index a77f530..042840c 100644
--- a/src/config/navigation.ts
+++ b/src/config/navigation.ts
@@ -12,6 +12,7 @@ export interface NavSubItemConfig {
 }
 
 export interface NavItemConfig {
+  isExternalSupport?: boolean
   title: string
   titleKey?: string
   to?: string
@@ -127,7 +128,7 @@ export function getNavigationConfig(t: (key: string) => string): NavGroupConfig[
           ],
         },
         { title: t('navigation.costEstimate'), titleKey: 'navigation.costEstimate', to: '/services/cost-estimate', icon: 'calculator' },
-        { title: t('navigation.support'), titleKey: 'navigation.support', to: '/services/consultant', icon: 'headset' },
+        { title: t('navigation.support'), titleKey: 'navigation.support', isExternalSupport: true, icon: 'headset' },
         { title: t('navigation.faq'), titleKey: 'navigation.faq', to: '/services/faq', icon: 'helpCircle' },
         { title: t('navigation.settings'), titleKey: 'navigation.settings', to: '/settings', icon: 'settings' },
       ],
diff --git a/src/lib/support.ts b/src/lib/support.ts
new file mode 100644
index 0000000..ca5b89a
--- /dev/null
+++ b/src/lib/support.ts
@@ -0,0 +1,67 @@
+import { apiFetch } from '@/services/http'
+
+let cachedSupportUrl: string | null = null
+
+function getActiveLanguageAndTheme(): { lang: string; theme: string } {
+  const isDark = document.documentElement.classList.contains('dark') || document.body.classList.contains('dark')
+  const theme = isDark ? 'dark' : 'light'
+
+  const htmlLang = document.documentElement.lang || ''
+  const htmlDir = document.documentElement.dir || ''
+  const storedLang = localStorage.getItem('i18nextLng') || localStorage.getItem('lang') || ''
+
+  let lang = 'fa'
+  if (htmlLang.startsWith('en') || storedLang.startsWith('en')) {
+    lang = 'en'
+  } else if (htmlDir === 'ltr' && !storedLang.startsWith('fa')) {
+    lang = 'en'
+  }
+
+  return { lang, theme }
+}
+
+export function prefetchSupportUrl(): void {
+  if (cachedSupportUrl) return
+  const { lang, theme } = getActiveLanguageAndTheme()
+  apiFetch<{ success: boolean; url: string }>(`/support/ticket-url/?lang=${lang}&theme=${theme}`)
+    .then((data) => {
+      if (data && data.url) {
+        cachedSupportUrl = data.url
+      }
+    })
+    .catch(() => {
+      // Ignore background errors
+    })
+}
+
+export async function openSupportTicketPortal(): Promise<void> {
+  const { lang, theme } = getActiveLanguageAndTheme()
+
+  let baseUrl = cachedSupportUrl
+
+  if (!baseUrl) {
+    try {
+      const data = await apiFetch<{ success: boolean; url: string }>(`/support/ticket-url/?lang=${lang}&theme=${theme}`)
+      if (data && data.url) {
+        cachedSupportUrl = data.url
+        baseUrl = data.url
+      }
+    } catch {
+      // ignore
+    }
+  }
+
+  if (!baseUrl) {
+    baseUrl = 'https://teamby.nwhco.ir/portal/76cb859c-24e3-4309-9d99-504ac2e49268/'
+  }
+
+  try {
+    const urlObj = new URL(baseUrl)
+    urlObj.searchParams.set('lang', lang)
+    urlObj.searchParams.set('theme', theme)
+    window.open(urlObj.toString(), '_blank')
+  } catch {
+    const sep = baseUrl.includes('?') ? '&' : '?'
+    window.open(`${baseUrl}${sep}lang=${lang}&theme=${theme}`, '_blank')
+  }
+}