diff --git a/src/core/apollo/generated/apollo-helpers.ts b/src/core/apollo/generated/apollo-helpers.ts
index b717c2e282..4849340800 100644
--- a/src/core/apollo/generated/apollo-helpers.ts
+++ b/src/core/apollo/generated/apollo-helpers.ts
@@ -1557,6 +1557,7 @@ export type InAppNotificationCommunityNewMemberFieldPolicy = {
 export type InAppNotificationUserMentionedKeySpecifier = (
   | 'category'
   | 'comment'
+  | 'commentOriginName'
   | 'commentUrl'
   | 'contributorType'
   | 'id'
@@ -1570,6 +1571,7 @@ export type InAppNotificationUserMentionedKeySpecifier = (
 export type InAppNotificationUserMentionedFieldPolicy = {
   category?: FieldPolicy<any> | FieldReadFunction<any>;
   comment?: FieldPolicy<any> | FieldReadFunction<any>;
+  commentOriginName?: FieldPolicy<any> | FieldReadFunction<any>;
   commentUrl?: FieldPolicy<any> | FieldReadFunction<any>;
   contributorType?: FieldPolicy<any> | FieldReadFunction<any>;
   id?: FieldPolicy<any> | FieldReadFunction<any>;
diff --git a/src/core/apollo/generated/apollo-hooks.ts b/src/core/apollo/generated/apollo-hooks.ts
index cc22b1193b..5e8d5184e7 100644
--- a/src/core/apollo/generated/apollo-hooks.ts
+++ b/src/core/apollo/generated/apollo-hooks.ts
@@ -3169,6 +3169,7 @@ export const InAppNotificationUserMentionedFragmentDoc = gql`
     }
     commentUrl
     comment
+    commentOriginName
     contributorType
   }
   ${VisualUriFragmentDoc}
diff --git a/src/core/apollo/generated/graphql-schema.ts b/src/core/apollo/generated/graphql-schema.ts
index 4c2273d540..957920f0f8 100644
--- a/src/core/apollo/generated/graphql-schema.ts
+++ b/src/core/apollo/generated/graphql-schema.ts
@@ -2605,6 +2605,8 @@ export type InAppNotificationUserMentioned = InAppNotification & {
   category: InAppNotificationCategory;
   /** The comment that the contributor was mentioned in. */
   comment: Scalars['String'];
+  /** The display name of the resource where the comment was created. */
+  commentOriginName: Scalars['String'];
   /** The url of the resource where the comment was created. */
   commentUrl: Scalars['String'];
   /** The type of the Contributor that joined. */
@@ -28000,6 +28002,7 @@ export type InAppNotificationsQuery = {
         triggeredAt: Date;
         commentUrl: string;
         comment: string;
+        commentOriginName: string;
         contributorType: CommunityContributorType;
         triggeredBy:
           | {
@@ -28210,6 +28213,7 @@ export type InAppNotificationUserMentionedFragment = {
   __typename?: 'InAppNotificationUserMentioned';
   commentUrl: string;
   comment: string;
+  commentOriginName: string;
   contributorType: CommunityContributorType;
   triggeredBy:
     | {
diff --git a/src/main/inAppNotifications/graphql/InAppNotificationsFragments.graphql b/src/main/inAppNotifications/graphql/InAppNotificationsFragments.graphql
index d41db12ca2..30bf962e8b 100644
--- a/src/main/inAppNotifications/graphql/InAppNotificationsFragments.graphql
+++ b/src/main/inAppNotifications/graphql/InAppNotificationsFragments.graphql
@@ -91,5 +91,6 @@ fragment InAppNotificationUserMentioned on InAppNotificationUserMentioned {
   }
   commentUrl
   comment
+  commentOriginName
   contributorType
 }
diff --git a/src/main/inAppNotifications/useInAppNotifications.ts b/src/main/inAppNotifications/useInAppNotifications.ts
index 363a67af4e..b860e6914a 100644
--- a/src/main/inAppNotifications/useInAppNotifications.ts
+++ b/src/main/inAppNotifications/useInAppNotifications.ts
@@ -85,6 +85,7 @@ export interface InAppNotificationProps {
   };
   comment?: string;
   commentUrl?: string;
+  commentOriginName?: string;
 }
 
 export const useInAppNotifications = () => {
diff --git a/src/main/inAppNotifications/views/CollaborationCalloutPublishedView.tsx b/src/main/inAppNotifications/views/CollaborationCalloutPublishedView.tsx
index 9c1dea912a..8b946fad77 100644
--- a/src/main/inAppNotifications/views/CollaborationCalloutPublishedView.tsx
+++ b/src/main/inAppNotifications/views/CollaborationCalloutPublishedView.tsx
@@ -2,6 +2,8 @@ import { useTranslation } from 'react-i18next';
 import { InAppNotificationProps } from '../useInAppNotifications';
 import { InAppNotificationBaseView, InAppNotificationBaseViewProps } from './InAppNotificationBaseView';
 import { useMemo } from 'react';
+import { getChildJourneyTypeName } from '@/domain/shared/utils/spaceLevel';
+import { SpaceLevel } from '@/core/apollo/generated/graphql-schema';
 
 export const CollaborationCalloutPublishedView = ({
   id,
@@ -24,7 +26,7 @@ export const CollaborationCalloutPublishedView = ({
     const notificationTextValues = {
       defaultValue: '',
       spaceName: space?.profile?.displayName,
-      spaceType: space?.level,
+      spaceType: t(`common.${getChildJourneyTypeName({ level: space?.level ?? SpaceLevel.Space })}`),
       calloutName: callout?.framing?.profile?.displayName,
       calloutType: calloutType,
       contributorName: triggeredBy?.profile?.displayName,
@@ -48,5 +50,15 @@ export const CollaborationCalloutPublishedView = ({
     };
   }, [id, state, space, callout, triggeredBy, triggeredAt, t]);
 
+  // do not display notification if these are missing
+  if (
+    !callout ||
+    !callout.framing?.profile?.displayName ||
+    !callout?.framing?.profile?.url ||
+    !triggeredBy?.profile?.displayName
+  ) {
+    return null;
+  }
+
   return <InAppNotificationBaseView {...notification} />;
 };
diff --git a/src/main/inAppNotifications/views/CommunicationUserMentionView.tsx b/src/main/inAppNotifications/views/CommunicationUserMentionView.tsx
index d09381a86b..22ba53afb3 100644
--- a/src/main/inAppNotifications/views/CommunicationUserMentionView.tsx
+++ b/src/main/inAppNotifications/views/CommunicationUserMentionView.tsx
@@ -7,17 +7,17 @@ export const CommunicationUserMentionView = ({
   type,
   state,
   space,
-  callout,
   triggeredBy,
   triggeredAt,
   comment,
   commentUrl,
+  commentOriginName,
 }: InAppNotificationProps) => {
   const notification: InAppNotificationBaseViewProps = useMemo(() => {
     const notificationTextValues = {
       defaultValue: '',
       commenterName: triggeredBy?.profile?.displayName,
-      calloutName: callout?.framing?.profile?.displayName,
+      calloutName: commentOriginName,
       comment,
     };
 
@@ -37,7 +37,12 @@ export const CommunicationUserMentionView = ({
       triggeredAt: triggeredAt,
       values: notificationTextValues,
     };
-  }, [id, state, space, triggeredBy, callout, triggeredAt, comment, commentUrl]);
+  }, [id, state, space, triggeredBy, commentOriginName, triggeredAt, comment, commentUrl]);
+
+  // do not display notification if these are missing
+  if (!commentOriginName || !commentUrl || !triggeredBy?.profile?.displayName) {
+    return null;
+  }
 
   return <InAppNotificationBaseView {...notification} />;
 };
diff --git a/src/main/inAppNotifications/views/CommunityNewMemberAdminView.tsx b/src/main/inAppNotifications/views/CommunityNewMemberAdminView.tsx
index 7a7c9996e4..e705f3e627 100644
--- a/src/main/inAppNotifications/views/CommunityNewMemberAdminView.tsx
+++ b/src/main/inAppNotifications/views/CommunityNewMemberAdminView.tsx
@@ -26,5 +26,10 @@ export const CommunityNewMemberAdminView = ({ id, state, space, triggeredAt, act
     };
   }, [id, state, space, triggeredAt, actor]);
 
+  // do not display notification if these are missing
+  if (!actor?.profile?.displayName || !space?.profile?.displayName) {
+    return null;
+  }
+
   return <InAppNotificationBaseView {...notification} />;
 };
diff --git a/src/main/inAppNotifications/views/CommunityNewMemberView.tsx b/src/main/inAppNotifications/views/CommunityNewMemberView.tsx
index e9d2d48f57..bca433b6c2 100644
--- a/src/main/inAppNotifications/views/CommunityNewMemberView.tsx
+++ b/src/main/inAppNotifications/views/CommunityNewMemberView.tsx
@@ -24,5 +24,10 @@ export const CommunityNewMemberView = ({ id, type, state, space, triggeredAt }:
     };
   }, [id, state, space, triggeredAt]);
 
+  // do not display notification if these are missing
+  if (!space?.profile?.displayName) {
+    return null;
+  }
+
   return <InAppNotificationBaseView {...notification} />;
 };