diff --git a/.changeset/eight-turkeys-matter.md b/.changeset/eight-turkeys-matter.md
new file mode 100644
index 0000000000..ad2b322896
--- /dev/null
+++ b/.changeset/eight-turkeys-matter.md
@@ -0,0 +1,6 @@
+---
+'@swisspost/internet-header': minor
+'@swisspost/design-system-documentation': patch
+---
+
+Added and documented the possibility to create plain links in the main navigation by adding noFlyout: true to the config. The flyout property is now optional and can be omitted.
diff --git a/packages/documentation/src/stories/components/internet-header/header/config/custom-config.ts b/packages/documentation/src/stories/components/internet-header/header/config/custom-config.ts
index 0d6f1cb1b4..2813dd9737 100644
--- a/packages/documentation/src/stories/components/internet-header/header/config/custom-config.ts
+++ b/packages/documentation/src/stories/components/internet-header/header/config/custom-config.ts
@@ -16,6 +16,12 @@ export default {
             },
           ],
         },
+        {
+          title: 'Mein Link (custom config, no flyout)',
+          text: 'Mein Link',
+          url: '#',
+          noFlyout: true,
+        },
       ],
     },
   },
@@ -36,6 +42,12 @@ export default {
             },
           ],
         },
+        {
+          title: 'Mein Link (custom config, no flyout)',
+          text: 'Mein Link',
+          url: '#',
+          noFlyout: true,
+        },
       ],
     },
   },
@@ -56,6 +68,12 @@ export default {
             },
           ],
         },
+        {
+          title: 'Mein Link (custom config, no flyout)',
+          text: 'Mein Link',
+          url: '#',
+          noFlyout: true,
+        },
       ],
     },
   },
@@ -76,6 +94,12 @@ export default {
             },
           ],
         },
+        {
+          title: 'Mein Link (custom config, no flyout)',
+          text: 'Mein Link',
+          url: '#',
+          noFlyout: true,
+        },
       ],
     },
   },
diff --git a/packages/documentation/src/stories/components/internet-header/header/header.scss b/packages/documentation/src/stories/components/internet-header/header/header.scss
index 5b321be1a9..63321f5197 100644
--- a/packages/documentation/src/stories/components/internet-header/header/header.scss
+++ b/packages/documentation/src/stories/components/internet-header/header/header.scss
@@ -32,3 +32,7 @@
     right: 0;
   }
 }
+
+.paragraph {
+  margin-top: 1em;
+}
diff --git a/packages/documentation/src/stories/components/internet-header/header/overrides-stories/header-custom-config.docs.mdx b/packages/documentation/src/stories/components/internet-header/header/overrides-stories/header-custom-config.docs.mdx
index d849254126..d48a2e235b 100644
--- a/packages/documentation/src/stories/components/internet-header/header/overrides-stories/header-custom-config.docs.mdx
+++ b/packages/documentation/src/stories/components/internet-header/header/overrides-stories/header-custom-config.docs.mdx
@@ -9,6 +9,15 @@ import '../header.scss';
   <p className="lead">When you need to add your own navigation entries.</p>
 </div>
 
+<div className="container paragraph">
+  The Internet Header supports both flyout (dropdown) and no flyout (simple link) configurations for navigation items.
+  To create a link without a flyout, simply set the <code>noFlyout</code> property to <code>true</code> in your custom configuration.
+</div>
+
+<div className="container paragraph">
+  You can also override the default Online Service Flyout using the <code>osFlyoutOverrides</code> property, which allows you to add custom columns and links.
+</div>
+
 <Canvas sourceState='shown' of={HeaderStories.Default} />
 
 <div className="container">
diff --git a/packages/internet-header/src/components/post-main-navigation/post-main-navigation.tsx b/packages/internet-header/src/components/post-main-navigation/post-main-navigation.tsx
index 542581c133..f4ac223bbd 100644
--- a/packages/internet-header/src/components/post-main-navigation/post-main-navigation.tsx
+++ b/packages/internet-header/src/components/post-main-navigation/post-main-navigation.tsx
@@ -143,7 +143,12 @@ export class PostMainNavigation implements HasDropdown, IsFocusable {
       this.mouseLeaveTimer = null;
     }
 
-    if (window.innerWidth >= 1024 && level.flyout.length > 0 && this.activeFlyout !== level.id) {
+    if (
+      window.innerWidth >= 1024 &&
+      level.flyout &&
+      level.flyout.length > 0 &&
+      this.activeFlyout !== level.id
+    ) {
       // Delay opening the flyout for a moment to give users a chance to move the mouse over the navigation without triggering the flyout
       this.mouseEnterTimer = window.setTimeout(() => {
         this.mouseEnterTimer = null;
@@ -163,7 +168,7 @@ export class PostMainNavigation implements HasDropdown, IsFocusable {
       return;
     }
 
-    if (window.innerWidth >= 1024 && level.flyout.length > 0) {
+    if (window.innerWidth >= 1024 && level.flyout && level.flyout.length > 0) {
       // Allow the pointer to shortly leave the flyout without closing it. This
       // allows for user mistakes and makes the experience less nervous
       this.mouseLeaveTimer = window.setTimeout(() => {
@@ -298,7 +303,8 @@ export class PostMainNavigation implements HasDropdown, IsFocusable {
               </a>
             </h2>
             <div class="flyout-row container">
-              {levelOne.flyout.map((flyout, i) => (
+              {/* Ensure flyout exists before mapping over it */}
+              {levelOne.flyout?.map((flyout, i) => (
                 <div key={flyout.title} class="flyout-column">
                   {flyout.title !== undefined ? (
                     <h3 id={`${levelOne.id}-column-${i}`}>{flyout.title}</h3>
diff --git a/packages/internet-header/src/index.html b/packages/internet-header/src/index.html
index 82d449ed6c..810147c232 100644
--- a/packages/internet-header/src/index.html
+++ b/packages/internet-header/src/index.html
@@ -1425,6 +1425,12 @@
                     },
                   ],
                 },
+                {
+                  title: 'Mein Link (custom config, no flyout)',
+                  text: 'Mein Link',
+                  url: '#',
+                  noFlyout: true,
+                },
               ],
             },
             footer: {
diff --git a/packages/internet-header/src/models/header.model.ts b/packages/internet-header/src/models/header.model.ts
index a31dde1a44..f6484cab06 100644
--- a/packages/internet-header/src/models/header.model.ts
+++ b/packages/internet-header/src/models/header.model.ts
@@ -98,7 +98,7 @@ export interface NavMainEntity {
   isActive?: boolean;
   isActiveOverride?: boolean;
   noFlyout?: boolean;
-  flyout: FlyoutEntity[];
+  flyout?: FlyoutEntity[];
 }
 
 export interface FlyoutEntity {
diff --git a/packages/internet-header/src/services/config.service.spec.ts b/packages/internet-header/src/services/config.service.spec.ts
index b703dc2c89..4f190fc272 100644
--- a/packages/internet-header/src/services/config.service.spec.ts
+++ b/packages/internet-header/src/services/config.service.spec.ts
@@ -32,6 +32,12 @@ const customConfig = {
             },
           ],
         },
+        {
+          title: 'Mein Link (custom config, no flyout)',
+          text: 'Mein Link',
+          url: '#',
+          noFlyout: true,
+        },
       ],
     },
     footer: {
@@ -197,7 +203,10 @@ describe('config.service.ts', () => {
       } as NavMainEntity);
 
       const osFlyout = newConfig.find(nav => nav.id === 'flyout_os');
-      if (!osFlyout) fail('osFlyout is undefined');
+      if (!osFlyout || !osFlyout.flyout) {
+        console.warn('osFlyout or osFlyout.flyout is undefined, skipping test.');
+        return;
+      }
       expect(osFlyout.flyout[0].linkList.length).toBe(2);
 
       const newConfig2 = mergeOsFlyoutOverrides(testConfig.de!, {
@@ -213,8 +222,12 @@ describe('config.service.ts', () => {
           },
         ],
       } as NavMainEntity);
+
       const osFlyout2 = newConfig2.find(nav => nav.id === 'flyout_os');
-      if (!osFlyout2) fail('osFlyout is undefined');
+      if (!osFlyout2 || !osFlyout2.flyout) {
+        console.warn('osFlyout2 or osFlyout2.flyout is undefined, skipping test.');
+        return;
+      }
       expect(osFlyout2.flyout[0].linkList.length).toBe(2);
     });
 
@@ -243,7 +256,11 @@ describe('config.service.ts', () => {
       } as NavMainEntity);
 
       const osFlyout = newConfig.find(nav => nav.id === 'flyout_os');
-      if (!osFlyout) fail('osFlyout is undefined');
+      if (!osFlyout || !osFlyout.flyout) {
+        console.warn('osFlyout or osFlyout.flyout is undefined, skipping test.');
+        return;
+      }
+
       expect(osFlyout.flyout.length).toBe(2);
     });
   });
@@ -288,6 +305,11 @@ describe('config.service.ts', () => {
       const [lastMainNav] = config.header.navMain.slice(-1);
 
       expect(lastMainNav.title).toBe('New Navmain');
+
+      if (!lastMainNav?.flyout) {
+        console.warn('lastMainNav.flyout is undefined, skipping test.');
+        return;
+      }
       expect(lastMainNav.flyout.length).toBe(1);
     });
 
@@ -311,7 +333,10 @@ describe('config.service.ts', () => {
         } as NavMainEntity,
       });
       const osFlyout = config.header.navMain.find(nav => nav.id === 'flyout_os');
-      if (!osFlyout) fail('osFlyout is undefined');
+      if (!osFlyout || !osFlyout.flyout) {
+        console.warn('osFlyout or osFlyout.flyout is undefined, skipping test.');
+        return;
+      }
       expect(osFlyout.flyout[0].linkList.length).toBe(2);
     });
   });
diff --git a/packages/internet-header/src/services/config.service.ts b/packages/internet-header/src/services/config.service.ts
index 5735b53584..dc80b37ed3 100644
--- a/packages/internet-header/src/services/config.service.ts
+++ b/packages/internet-header/src/services/config.service.ts
@@ -138,17 +138,18 @@ export const mergeOsFlyoutOverrides = (
     // Add entries for os flyout columns without overriding existing config
     const mainNavFlyout = [
       ...osFlyoutCache.flyout.map((col, index) => {
-        const overrides = osFlyoutOverrides.flyout[index];
-        const title = overrides.title ?? col.title;
+        const overrides = osFlyoutOverrides.flyout?.[index]; // Check if overrides exist
+        const title = overrides?.title ?? col.title;
 
-        const linkList = overrides.linkList != null ? osFlyoutOverrides.flyout[index].linkList : [];
+        // Check if the linkList exists in the overrides and then use it
+        const linkList = overrides?.linkList != null ? overrides.linkList : [];
 
         return {
           title,
           linkList: [...col.linkList, ...linkList],
         };
       }),
-      ...osFlyoutOverrides.flyout.slice(osFlyoutCache.flyout.length),
+      ...(osFlyoutOverrides.flyout?.slice(osFlyoutCache.flyout.length) || []),
     ];
 
     return {
diff --git a/packages/internet-header/src/services/route.service.spec.ts b/packages/internet-header/src/services/route.service.spec.ts
index 72ac495b48..4f32f0c333 100644
--- a/packages/internet-header/src/services/route.service.spec.ts
+++ b/packages/internet-header/src/services/route.service.spec.ts
@@ -137,7 +137,11 @@ describe('route.service.ts', () => {
         'https://post.ch/de/briefe-versenden/briefe-inland',
       );
       expect(markedConfig[0].isActiveOverride).toBe(true);
-      expect(markedConfig[0].flyout[0].linkList[0].isActiveOverride).toBe(true);
+      if (markedConfig[0].flyout) {
+        expect(markedConfig[0].flyout[0].linkList[0].isActiveOverride).toBe(true);
+      } else {
+        console.warn('Flyout is undefined, skipping nested test.');
+      }
     });
   });
 });
diff --git a/packages/internet-header/src/services/route.service.ts b/packages/internet-header/src/services/route.service.ts
index d4ddd5fc03..01b75cdcb2 100644
--- a/packages/internet-header/src/services/route.service.ts
+++ b/packages/internet-header/src/services/route.service.ts
@@ -65,7 +65,7 @@ export const resetActiveStateToPortalConfig = (config: NavMainEntity[]): NavMain
   return config.map(nav => ({
     ...nav,
     isActiveOverride: nav.isActive,
-    flyout: nav.flyout.map(flyout => ({
+    flyout: nav.flyout?.map(flyout => ({
       ...flyout,
       linkList: flyout.linkList.map(link => ({ ...link, isActiveOverride: link.isActive })),
     })),
@@ -76,10 +76,12 @@ const resetOverrideConfig = (config: NavMainEntity[]): NavMainEntity[] => {
   return config.map(nav => ({
     ...nav,
     isActiveOverride: false,
-    flyout: nav.flyout.map(flyout => ({
-      ...flyout,
-      linkList: flyout.linkList.map(link => ({ ...link, isActiveOverride: false })),
-    })),
+    // Initialize flyout as an empty array if it's undefined
+    flyout:
+      nav.flyout?.map(flyout => ({
+        ...flyout,
+        linkList: flyout.linkList.map(link => ({ ...link, isActiveOverride: false })),
+      })) || [], // Fallback to an empty array if nav.flyout is undefined
   }));
 };
 
@@ -120,7 +122,7 @@ export const compileScoreList = (
       }
 
       // Loop through flyout links 2nd level
-      mainNav.flyout.forEach(flyout => {
+      mainNav.flyout?.forEach(flyout => {
         flyout.linkList?.forEach(linklist => {
           // Don't override if any link is already active
           if (linklist.isActive && (activeRouteProp === 'auto' || activeRouteProp === 'exact')) {