diff --git a/packages/nuxt-ripple/mapping/base/index.ts b/packages/nuxt-ripple/mapping/base/index.ts
index 74dc3f7f96..666ef70065 100644
--- a/packages/nuxt-ripple/mapping/base/index.ts
+++ b/packages/nuxt-ripple/mapping/base/index.ts
@@ -23,7 +23,7 @@ import {
   includes as sidebarSiteSectionNavIncludes
 } from './sidebar-site-section-nav/sidebar-site-section-nav-mapping.js'
 import TidePageMeta from './page-meta.js'
-import { TidePageApi } from '@dpc-sdp/ripple-tide-api'
+import { TidePageApi, getSiteSection } from '@dpc-sdp/ripple-tide-api'
 
 export const tidePageBaseMapping = ({
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
@@ -65,13 +65,8 @@ export const tidePageBaseMapping = ({
     status: 'moderation_state',
     topicTags: topicTagsMapping,
     siteSection: async (src, tidePageApi: TidePageApi) => {
-      // The section/site id comes from the drupal 'route' api
-      const siteId = tidePageApi.sectionId
-
       // With the correct site/section id, we can now choose the correct site data from 'field_node_site'
-      const siteData = src.field_node_site?.find((site) => {
-        return `${site.drupal_internal__tid}` === siteId
-      })
+      const siteData = getSiteSection(tidePageApi.sectionId, src)
 
       if (!siteData) {
         return null
diff --git a/packages/nuxt-ripple/mapping/base/sidebar-site-section-nav/sidebar-site-section-nav-mapping.ts b/packages/nuxt-ripple/mapping/base/sidebar-site-section-nav/sidebar-site-section-nav-mapping.ts
index ad3d3c3810..0d29d03b13 100644
--- a/packages/nuxt-ripple/mapping/base/sidebar-site-section-nav/sidebar-site-section-nav-mapping.ts
+++ b/packages/nuxt-ripple/mapping/base/sidebar-site-section-nav/sidebar-site-section-nav-mapping.ts
@@ -1,17 +1,16 @@
-import { TidePageApi } from '@dpc-sdp/ripple-tide-api'
+import { TidePageApi, getSiteSection } from '@dpc-sdp/ripple-tide-api'
 
 export const map = async (src, tidePageApi: TidePageApi) => {
   if (!src.field_show_site_section_nav) {
     return null
   }
 
-  // The section/site id comes from the drupal 'route' api
-  const siteId = tidePageApi.sectionId
-
   // With the correct site/section id, we can now choose the correct site data from 'field_node_site'
-  const siteData = src.field_node_site.find((site) => {
-    return `${site.drupal_internal__tid}` === siteId
-  })
+  const siteData = getSiteSection(tidePageApi.sectionId, src)
+
+  if (!siteData) {
+    return null
+  }
 
   // Finally, this site data will contain a reference to the menu we need to fetch
   const menuData = siteData.field_site_main_menu
diff --git a/packages/ripple-tide-api/src/utils/mapping-utils.ts b/packages/ripple-tide-api/src/utils/mapping-utils.ts
index 1d474c60de..d35c93f816 100644
--- a/packages/ripple-tide-api/src/utils/mapping-utils.ts
+++ b/packages/ripple-tide-api/src/utils/mapping-utils.ts
@@ -37,6 +37,14 @@ interface RawCardImage {
   data: RawCardImageData[]
 }
 
+type tidePageSitePartial = {
+  field_node_site: [
+    {
+      drupal_internal__tid: number
+    }
+  ]
+}
+
 /**
  * @deprecated Need to make a decision on whether we proxy images or use direct url
  */
@@ -170,6 +178,38 @@ export const getSiteKeyValues = (key: string, src: any) => {
   }
 }
 
+/**
+ * @description returns the site section id from either the passed section ID or the page src sites. Selects the last site as per existing logic.
+ */
+export const getSiteSectionId = (
+  sectionId: string,
+  src: tidePageSitePartial
+) => {
+  if (sectionId) {
+    return `${sectionId}`
+  }
+  if (src.field_node_site && src.field_node_site.length > 0) {
+    return `${src.field_node_site.slice(-1)[0].drupal_internal__tid}`
+  }
+  return null
+}
+
+/**
+ * @description returns the correct site section from the page sites data
+ */
+export const getSiteSection = (sectionId, src) => {
+  const siteId = getSiteSectionId(sectionId, src)
+
+  if (!siteId) {
+    return null
+  }
+
+  // With the correct site/section id, we can now choose the correct site data from 'field_node_site'
+  return src.field_node_site?.find((site) => {
+    return `${site.drupal_internal__tid}` === siteId
+  })
+}
+
 export default {
   getImageFromField,
   getLinkFromField,