diff --git a/libs/ui/src/lib/activities-table/activities-table.component.stories.ts b/libs/ui/src/lib/activities-table/activities-table.component.stories.ts
index e7a2ba819..25463e576 100644
--- a/libs/ui/src/lib/activities-table/activities-table.component.stories.ts
+++ b/libs/ui/src/lib/activities-table/activities-table.component.stories.ts
@@ -59,7 +59,7 @@ const activities: Activity[] = [
     SymbolProfile: {
       assetClass: 'EQUITY',
       assetSubClass: 'ETF',
-      comment: null,
+      comment: undefined,
       countries: [],
       createdAt: new Date('2021-06-06T16:12:20.982Z'),
       currency: 'USD',
@@ -74,12 +74,12 @@ const activities: Activity[] = [
       isin: 'US9220427424',
       name: 'Vanguard Total World Stock Index Fund ETF Shares',
       updatedAt: new Date('2025-10-01T20:09:39.500Z'),
-      scraperConfiguration: null,
+      scraperConfiguration: undefined,
       sectors: [],
       symbol: 'VT',
       symbolMapping: {},
       url: 'https://www.vanguard.com',
-      userId: null,
+      userId: undefined,
       activitiesCount: 267,
       dateOfFirstActivity: new Date('2018-05-31T16:00:00.000Z')
     },
@@ -126,7 +126,7 @@ const activities: Activity[] = [
     SymbolProfile: {
       assetClass: 'EQUITY',
       assetSubClass: 'ETF',
-      comment: null,
+      comment: undefined,
       countries: [],
       createdAt: new Date('2021-06-06T16:12:20.982Z'),
       currency: 'USD',
@@ -141,12 +141,12 @@ const activities: Activity[] = [
       isin: 'US9220427424',
       name: 'Vanguard Total World Stock Index Fund ETF Shares',
       updatedAt: new Date('2025-10-01T20:09:39.500Z'),
-      scraperConfiguration: null,
+      scraperConfiguration: undefined,
       sectors: [],
       symbol: 'VT',
       symbolMapping: {},
       url: 'https://www.vanguard.com',
-      userId: null,
+      userId: undefined,
       activitiesCount: 267,
       dateOfFirstActivity: new Date('2018-05-31T16:00:00.000Z')
     },
@@ -193,7 +193,7 @@ const activities: Activity[] = [
     SymbolProfile: {
       assetClass: 'LIQUIDITY',
       assetSubClass: 'CRYPTOCURRENCY',
-      comment: null,
+      comment: undefined,
       countries: [],
       createdAt: new Date('2024-03-12T15:15:21.217Z'),
       currency: 'USD',
@@ -208,12 +208,12 @@ const activities: Activity[] = [
       isin: 'CA4639181029',
       name: 'iShares Bitcoin Trust',
       updatedAt: new Date('2025-09-29T03:14:07.742Z'),
-      scraperConfiguration: null,
+      scraperConfiguration: undefined,
       sectors: [],
       symbol: 'IBIT',
       symbolMapping: {},
       url: 'https://www.ishares.com',
-      userId: null,
+      userId: undefined,
       activitiesCount: 6,
       dateOfFirstActivity: new Date('2024-01-01T08:00:00.000Z')
     },
@@ -280,7 +280,7 @@ const activities: Activity[] = [
       symbol: 'BNDW',
       symbolMapping: {},
       url: 'https://vanguard.com',
-      userId: null,
+      userId: undefined,
       activitiesCount: 38,
       dateOfFirstActivity: new Date('2022-04-13T20:05:48.742Z')
     },
@@ -327,7 +327,7 @@ const activities: Activity[] = [
     SymbolProfile: {
       assetClass: 'EQUITY',
       assetSubClass: 'ETF',
-      comment: null,
+      comment: undefined,
       countries: [],
       createdAt: new Date('2021-06-06T16:12:20.982Z'),
       currency: 'USD',
@@ -342,12 +342,12 @@ const activities: Activity[] = [
       isin: 'US9220427424',
       name: 'Vanguard Total World Stock Index Fund ETF Shares',
       updatedAt: new Date('2025-10-01T20:09:39.500Z'),
-      scraperConfiguration: null,
+      scraperConfiguration: undefined,
       sectors: [],
       symbol: 'VT',
       symbolMapping: {},
       url: 'https://www.vanguard.com',
-      userId: null,
+      userId: undefined,
       activitiesCount: 267,
       dateOfFirstActivity: new Date('2018-05-31T16:00:00.000Z')
     },