diff --git a/app/javascript/dashboard/helper/portalHelper.js b/app/javascript/dashboard/helper/portalHelper.js
index 09b648330..ec681ef1b 100644
--- a/app/javascript/dashboard/helper/portalHelper.js
+++ b/app/javascript/dashboard/helper/portalHelper.js
@@ -1,16 +1,55 @@
-export const buildPortalURL = portalSlug => {
-  const { hostURL, helpCenterURL } = window.chatwootConfig;
+/**
+ * Formats a custom domain with https protocol if needed
+ * @param {string} customDomain - The custom domain to format
+ * @returns {string} Formatted domain with https protocol
+ */
+const formatCustomDomain = customDomain =>
+  customDomain.startsWith('https') ? customDomain : `https://${customDomain}`;
+
+/**
+ * Gets the default base URL from configuration
+ * @returns {string} The default base URL
+ * @throws {Error} If no valid base URL is found
+ */
+const getDefaultBaseURL = () => {
+  const { hostURL, helpCenterURL } = window.chatwootConfig || {};
   const baseURL = helpCenterURL || hostURL || '';
-  return `${baseURL}/hc/${portalSlug}`;
+
+  if (!baseURL) {
+    throw new Error('No valid base URL found in configuration');
+  }
+
+  return `${baseURL}/hc`;
+};
+
+/**
+ * Gets the base URL from configuration or custom domain
+ * @param {string} [customDomain] - Optional custom domain for the portal
+ * @returns {string} The base URL for the portal
+ */
+const getPortalBaseURL = customDomain =>
+  customDomain ? formatCustomDomain(customDomain) : getDefaultBaseURL();
+
+/**
+ * Builds a portal URL using the provided portal slug and optional custom domain
+ * @param {string} portalSlug - The slug identifier for the portal
+ * @param {string} [customDomain] - Optional custom domain for the portal
+ * @returns {string} The complete portal URL
+ * @throws {Error} If portalSlug is not provided or invalid
+ */
+export const buildPortalURL = (portalSlug, customDomain) => {
+  const baseURL = getPortalBaseURL(customDomain);
+  return `${baseURL}/${portalSlug}`;
 };
 
 export const buildPortalArticleURL = (
   portalSlug,
   categorySlug,
   locale,
-  articleSlug
+  articleSlug,
+  customDomain
 ) => {
-  const portalURL = buildPortalURL(portalSlug);
+  const portalURL = buildPortalURL(portalSlug, customDomain);
   return `${portalURL}/articles/${articleSlug}`;
 };
 
diff --git a/app/javascript/dashboard/helper/specs/portalHelper.spec.js b/app/javascript/dashboard/helper/specs/portalHelper.spec.js
index 9c1a47255..daa188b28 100644
--- a/app/javascript/dashboard/helper/specs/portalHelper.spec.js
+++ b/app/javascript/dashboard/helper/specs/portalHelper.spec.js
@@ -25,5 +25,47 @@ describe('PortalHelper', () => {
       ).toEqual('https://help.chatwoot.com/hc/handbook/articles/article-slug');
       window.chatwootConfig = {};
     });
+
+    it('returns the correct url with custom domain', () => {
+      window.chatwootConfig = {
+        hostURL: 'https://app.chatwoot.com',
+        helpCenterURL: 'https://help.chatwoot.com',
+      };
+      expect(
+        buildPortalArticleURL(
+          'handbook',
+          'culture',
+          'fr',
+          'article-slug',
+          'custom-domain.dev'
+        )
+      ).toEqual('https://custom-domain.dev/handbook/articles/article-slug');
+    });
+
+    it('handles https in custom domain correctly', () => {
+      window.chatwootConfig = {
+        hostURL: 'https://app.chatwoot.com',
+        helpCenterURL: 'https://help.chatwoot.com',
+      };
+      expect(
+        buildPortalArticleURL(
+          'handbook',
+          'culture',
+          'fr',
+          'article-slug',
+          'https://custom-domain.dev'
+        )
+      ).toEqual('https://custom-domain.dev/handbook/articles/article-slug');
+    });
+
+    it('uses hostURL when helpCenterURL is not available', () => {
+      window.chatwootConfig = {
+        hostURL: 'https://app.chatwoot.com',
+        helpCenterURL: '',
+      };
+      expect(
+        buildPortalArticleURL('handbook', 'culture', 'fr', 'article-slug')
+      ).toEqual('https://app.chatwoot.com/hc/handbook/articles/article-slug');
+    });
   });
 });
diff --git a/app/javascript/dashboard/routes/dashboard/conversation/ConversationView.vue b/app/javascript/dashboard/routes/dashboard/conversation/ConversationView.vue
index d0e1610e9..4b86841f6 100644
--- a/app/javascript/dashboard/routes/dashboard/conversation/ConversationView.vue
+++ b/app/javascript/dashboard/routes/dashboard/conversation/ConversationView.vue
@@ -120,6 +120,7 @@ export default {
 
   mounted() {
     this.$store.dispatch('agents/get');
+    this.$store.dispatch('portals/index');
     this.initialize();
     this.$watch('$store.state.route', () => this.initialize());
     this.$watch('chatList.length', () => {
diff --git a/app/javascript/dashboard/routes/dashboard/helpcenter/components/ArticleSearch/SearchPopover.vue b/app/javascript/dashboard/routes/dashboard/helpcenter/components/ArticleSearch/SearchPopover.vue
index 809e58249..f54db1597 100644
--- a/app/javascript/dashboard/routes/dashboard/helpcenter/components/ArticleSearch/SearchPopover.vue
+++ b/app/javascript/dashboard/routes/dashboard/helpcenter/components/ArticleSearch/SearchPopover.vue
@@ -1,6 +1,7 @@
 <script>
 import { debounce } from '@chatwoot/utils';
 import { useAlert } from 'dashboard/composables';
+import { mapGetters } from 'vuex';
 import allLocales from 'shared/constants/locales.js';
 
 import SearchHeader from './Header.vue';
@@ -33,6 +34,15 @@ export default {
     };
   },
   computed: {
+    ...mapGetters({
+      portalBySlug: 'portals/portalBySlug',
+    }),
+    portal() {
+      return this.portalBySlug(this.selectedPortalSlug);
+    },
+    portalCustomDomain() {
+      return this.portal?.custom_domain;
+    },
     articleViewerUrl() {
       const article = this.activeArticle(this.activeId);
       if (!article) return '';
@@ -47,6 +57,7 @@ export default {
 
       return `${url}`;
     },
+
     searchResultsWithUrl() {
       return this.searchResults.map(article => ({
         ...article,
@@ -65,7 +76,8 @@ export default {
         this.selectedPortalSlug,
         '',
         '',
-        article.slug
+        article.slug,
+        this.portalCustomDomain
       );
     },
     localeName(code) {
@@ -111,7 +123,6 @@ export default {
     },
     onInsert(id) {
       const article = this.activeArticle(id || this.activeId);
-
       this.$emit('insert', article);
       useAlert(this.$t('HELP_CENTER.ARTICLE_SEARCH.SUCCESS_ARTICLE_INSERTED'));
       this.onClose();
diff --git a/app/javascript/dashboard/routes/dashboard/helpcenter/pages/PortalsArticlesEditPage.vue b/app/javascript/dashboard/routes/dashboard/helpcenter/pages/PortalsArticlesEditPage.vue
index 3bb868a58..809fd5d29 100644
--- a/app/javascript/dashboard/routes/dashboard/helpcenter/pages/PortalsArticlesEditPage.vue
+++ b/app/javascript/dashboard/routes/dashboard/helpcenter/pages/PortalsArticlesEditPage.vue
@@ -20,17 +20,23 @@ const articleById = useMapGetter('articles/articleById');
 
 const article = computed(() => articleById.value(articleSlug));
 
+const portalBySlug = useMapGetter('portals/portalBySlug');
+
+const portal = computed(() => portalBySlug.value(portalSlug));
+
 const isUpdating = ref(false);
 const isSaved = ref(false);
 
-const portalLink = computed(() => {
+const articleLink = computed(() => {
   const { slug: categorySlug, locale: categoryLocale } = article.value.category;
   const { slug: articleSlugValue } = article.value;
+  const portalCustomDomain = portal.value?.custom_domain;
   return buildPortalArticleURL(
     portalSlug,
     categorySlug,
     categoryLocale,
-    articleSlugValue
+    articleSlugValue,
+    portalCustomDomain
   );
 });
 
@@ -91,7 +97,7 @@ const fetchArticleDetails = () => {
 };
 
 const previewArticle = () => {
-  window.open(portalLink.value, '_blank');
+  window.open(articleLink.value, '_blank');
   useTrack(PORTALS_EVENTS.PREVIEW_ARTICLE, {
     status: article.value?.status,
   });