diff --git a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/__tests__/isFieldOrNestedFieldDateKind.test.ts b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/__tests__/isFieldOrNestedFieldDateKind.test.ts
index 1ea5b69d2e..71711c98d0 100644
--- a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/__tests__/isFieldOrNestedFieldDateKind.test.ts
+++ b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/__tests__/isFieldOrNestedFieldDateKind.test.ts
@@ -1,10 +1,10 @@
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { FieldMetadataType } from 'twenty-shared/types';
-import { isFieldOrNestedFieldDateKind } from '../isFieldOrNestedFieldDateKind';
+import { isFieldOrRelationNestedFieldDateKind } from '../isFieldOrNestedFieldDateKind';
 
 describe('isFieldOrNestedFieldDateKind', () => {
   it('returns false when fieldId is null', () => {
-    const result = isFieldOrNestedFieldDateKind({
+    const result = isFieldOrRelationNestedFieldDateKind({
       fieldId: null,
       subFieldName: null,
       objectMetadataItem: {} as ObjectMetadataItem,
@@ -18,7 +18,7 @@ describe('isFieldOrNestedFieldDateKind', () => {
       fields: [{ id: 'date-field-id', type: FieldMetadataType.DATE }],
     } as ObjectMetadataItem;
 
-    const result = isFieldOrNestedFieldDateKind({
+    const result = isFieldOrRelationNestedFieldDateKind({
       fieldId: 'date-field-id',
       subFieldName: null,
       objectMetadataItem,
@@ -32,7 +32,7 @@ describe('isFieldOrNestedFieldDateKind', () => {
       fields: [{ id: 'text-field-id', type: FieldMetadataType.TEXT }],
     } as ObjectMetadataItem;
 
-    const result = isFieldOrNestedFieldDateKind({
+    const result = isFieldOrRelationNestedFieldDateKind({
       fieldId: 'text-field-id',
       subFieldName: null,
       objectMetadataItem,
@@ -62,7 +62,7 @@ describe('isFieldOrNestedFieldDateKind', () => {
       ],
     } as ObjectMetadataItem;
 
-    const result = isFieldOrNestedFieldDateKind({
+    const result = isFieldOrRelationNestedFieldDateKind({
       fieldId: 'relation-field-id',
       subFieldName: 'createdAt',
       objectMetadataItem,
diff --git a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/buildChartGroupByFieldConfigUpdate.ts b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/buildChartGroupByFieldConfigUpdate.ts
index a7d3f95c70..debdf1352f 100644
--- a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/buildChartGroupByFieldConfigUpdate.ts
+++ b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/buildChartGroupByFieldConfigUpdate.ts
@@ -1,5 +1,5 @@
 import { type ChartConfiguration } from '@/command-menu/pages/page-layout/types/ChartConfiguration';
-import { isFieldOrNestedFieldDateKind } from '@/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind';
+import { isFieldOrRelationNestedFieldDateKind } from '@/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind';
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { ObjectRecordGroupByDateGranularity } from 'twenty-shared/types';
 import { isDefined } from 'twenty-shared/utils';
@@ -50,7 +50,7 @@ export const buildChartGroupByFieldConfigUpdate = <
         ? configuration.primaryAxisDateGranularity
         : null;
 
-    const isNewFieldDateType = isFieldOrNestedFieldDateKind({
+    const isNewFieldDateType = isFieldOrRelationNestedFieldDateKind({
       fieldId,
       subFieldName,
       objectMetadataItem,
diff --git a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind.ts b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind.ts
index 6a523b4f9f..9a2896cc88 100644
--- a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind.ts
+++ b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/isFieldOrNestedFieldDateKind.ts
@@ -1,9 +1,9 @@
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { isFieldRelation } from '@/object-record/record-field/ui/types/guards/isFieldRelation';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 
-export const isFieldOrNestedFieldDateKind = ({
+export const isFieldOrRelationNestedFieldDateKind = ({
   fieldId,
   subFieldName,
   objectMetadataItem,
@@ -27,11 +27,11 @@ export const isFieldOrNestedFieldDateKind = ({
   }
 
   if (isFieldRelation(field) && isDefined(subFieldName)) {
-    return isNestedFieldDateType(
-      field,
-      subFieldName,
-      objectMetadataItems ?? [],
-    );
+    return isRelationNestedFieldDateKind({
+      relationField: field,
+      relationNestedFieldName: subFieldName,
+      objectMetadataItems: objectMetadataItems ?? [],
+    });
   }
 
   return isFieldMetadataDateKind(field.type);
diff --git a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/shouldHideChartSetting.ts b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/shouldHideChartSetting.ts
index 305e03619f..378d3a0f62 100644
--- a/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/shouldHideChartSetting.ts
+++ b/packages/twenty-front/src/modules/command-menu/pages/page-layout/utils/shouldHideChartSetting.ts
@@ -3,7 +3,7 @@ import { CHART_CONFIGURATION_SETTING_IDS } from '@/command-menu/pages/page-layou
 import { type ChartSettingsItem } from '@/command-menu/pages/page-layout/types/ChartSettingsGroup';
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { isFieldRelation } from '@/object-record/record-field/ui/types/guards/isFieldRelation';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { isNonEmptyString } from '@sniptt/guards';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 
@@ -26,7 +26,11 @@ const shouldHideDateGranularityBasedOnFieldType = (
   }
 
   if (isFieldRelation(field) && isDefined(subFieldName)) {
-    return !isNestedFieldDateType(field, subFieldName, objectMetadataItems);
+    return !isRelationNestedFieldDateKind({
+      relationField: field,
+      relationNestedFieldName: subFieldName,
+      objectMetadataItems: objectMetadataItems ?? [],
+    });
   }
 
   return !isFieldMetadataDateKind(field.type);
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetBarChart/utils/transformGroupByDataToBarChartData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetBarChart/utils/transformGroupByDataToBarChartData.ts
index 0f145454af..eefef243d8 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetBarChart/utils/transformGroupByDataToBarChartData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetBarChart/utils/transformGroupByDataToBarChartData.ts
@@ -13,7 +13,7 @@ import { type GroupByRawResult } from '@/page-layout/widgets/graph/types/GroupBy
 import { type RawDimensionValue } from '@/page-layout/widgets/graph/types/RawDimensionValue';
 import { filterGroupByResults } from '@/page-layout/widgets/graph/utils/filterGroupByResults';
 import { getFieldKey } from '@/page-layout/widgets/graph/utils/getFieldKey';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { type BarDatum } from '@nivo/bar';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 import { GraphType } from '~/generated-metadata/graphql';
@@ -159,11 +159,11 @@ export const transformGroupByDataToBarChartData = ({
   const showLegend = configuration.displayLegend ?? true;
 
   const isDateField = isFieldMetadataDateKind(groupByFieldX.type);
-  const isNestedDateField = isNestedFieldDateType(
-    groupByFieldX,
-    primaryAxisSubFieldName,
+  const isNestedDateField = isRelationNestedFieldDateKind({
+    relationField: groupByFieldX,
+    relationNestedFieldName: primaryAxisSubFieldName,
     objectMetadataItems,
-  );
+  });
 
   const primaryAxisDateGranularity =
     isDateField || isNestedDateField
@@ -177,11 +177,11 @@ export const transformGroupByDataToBarChartData = ({
 
   const isSecondaryNestedDateField =
     isDefined(groupByFieldY) &&
-    isNestedFieldDateType(
-      groupByFieldY,
-      secondaryAxisSubFieldName ?? undefined,
+    isRelationNestedFieldDateKind({
+      relationField: groupByFieldY,
+      relationNestedFieldName: secondaryAxisSubFieldName,
       objectMetadataItems,
-    );
+    });
 
   const secondaryAxisDateGranularity =
     isSecondaryDateField || isSecondaryNestedDateField
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetPieChart/utils/transformGroupByDataToPieChartData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetPieChart/utils/transformGroupByDataToPieChartData.ts
index a51a458cf8..6a5bc908c2 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetPieChart/utils/transformGroupByDataToPieChartData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graphWidgetPieChart/utils/transformGroupByDataToPieChartData.ts
@@ -11,7 +11,7 @@ import { type RawDimensionValue } from '@/page-layout/widgets/graph/types/RawDim
 import { buildFormattedToRawLookup } from '@/page-layout/widgets/graph/utils/buildFormattedToRawLookup';
 import { computeAggregateValueFromGroupByResult } from '@/page-layout/widgets/graph/utils/computeAggregateValueFromGroupByResult';
 import { formatPrimaryDimensionValues } from '@/page-layout/widgets/graph/utils/formatPrimaryDimensionValues';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { type ObjectRecordGroupByDateGranularity } from 'twenty-shared/types';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 import { type PieChartConfiguration } from '~/generated/graphql';
@@ -71,11 +71,11 @@ export const transformGroupByDataToPieChartData = ({
   }
 
   const isDateField = isFieldMetadataDateKind(groupByField.type);
-  const isNestedDateField = isNestedFieldDateType(
-    groupByField,
-    configuration.groupBySubFieldName ?? undefined,
+  const isNestedDateField = isRelationNestedFieldDateKind({
+    relationField: groupByField,
+    relationNestedFieldName: configuration.groupBySubFieldName ?? undefined,
     objectMetadataItems,
-  );
+  });
 
   const dateGranularity: ObjectRecordGroupByDateGranularity | undefined =
     isDateField || isNestedDateField
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isNestedFieldDateType.test.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isRelationNestedFieldDateKind.test.ts
similarity index 53%
rename from packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isNestedFieldDateType.test.ts
rename to packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isRelationNestedFieldDateKind.test.ts
index f69aec76ce..c9e97c973d 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isNestedFieldDateType.test.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/__tests__/isRelationNestedFieldDateKind.test.ts
@@ -1,7 +1,7 @@
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { FieldMetadataType } from 'twenty-shared/types';
 
-describe('isNestedFieldDateType', () => {
+describe('isRelationNestedFieldDateKind', () => {
   const companyObject = {
     id: 'company-id',
     nameSingular: 'company',
@@ -19,25 +19,30 @@ describe('isNestedFieldDateType', () => {
   } as any;
 
   it('returns true for a relation subfield that is a date type', () => {
-    const result = isNestedFieldDateType(relationField, 'createdAt', [
-      companyObject,
-    ]);
-
+    const result = isRelationNestedFieldDateKind({
+      relationField: relationField,
+      relationNestedFieldName: 'createdAt',
+      objectMetadataItems: [companyObject],
+    });
     expect(result).toBe(true);
   });
 
   it('returns false when the nested subfield is not a date type', () => {
-    const result = isNestedFieldDateType(relationField, 'name', [
-      companyObject,
-    ]);
+    const result = isRelationNestedFieldDateKind({
+      relationField: relationField,
+      relationNestedFieldName: 'name',
+      objectMetadataItems: [companyObject],
+    });
 
     expect(result).toBe(false);
   });
 
   it('returns false when subFieldName is missing', () => {
-    const result = isNestedFieldDateType(relationField, undefined, [
-      companyObject,
-    ]);
+    const result = isRelationNestedFieldDateKind({
+      relationField: relationField,
+      relationNestedFieldName: undefined as string | undefined,
+      objectMetadataItems: [companyObject],
+    });
 
     expect(result).toBe(false);
   });
@@ -48,9 +53,11 @@ describe('isNestedFieldDateType', () => {
       type: FieldMetadataType.TEXT,
     } as any;
 
-    const result = isNestedFieldDateType(nonRelationField, 'createdAt', [
-      companyObject,
-    ]);
+    const result = isRelationNestedFieldDateKind({
+      relationField: nonRelationField,
+      relationNestedFieldName: 'createdAt',
+      objectMetadataItems: [companyObject],
+    });
 
     expect(result).toBe(false);
   });
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToBarChartData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToBarChartData.ts
index a46508bdb2..468324975c 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToBarChartData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToBarChartData.ts
@@ -1,4 +1,5 @@
 import { type BarDatum } from '@nivo/bar';
+import { isNumber } from '@sniptt/guards';
 import { isDefined } from 'twenty-shared/utils';
 
 type ApplyCumulativeTransformToBarChartDataOptions = {
@@ -18,7 +19,7 @@ export const applyCumulativeTransformToBarChartData = ({
     (accumulator, datum) => {
       const value = datum[aggregateKey];
 
-      if (typeof value === 'number') {
+      if (isNumber(value)) {
         accumulator.runningTotal += value;
       }
 
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToTwoDimensionalBarChartData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToTwoDimensionalBarChartData.ts
index f51ba076c0..5502581400 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToTwoDimensionalBarChartData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/applyCumulativeTransformToTwoDimensionalBarChartData.ts
@@ -1,4 +1,5 @@
 import { type BarDatum } from '@nivo/bar';
+import { isNumber } from '@sniptt/guards';
 import { isDefined } from 'twenty-shared/utils';
 
 type ApplyCumulativeTransformToTwoDimensionalBarChartDataOptions = {
@@ -24,7 +25,7 @@ export const applyCumulativeTransformToTwoDimensionalBarChartData = ({
       for (const key of keys) {
         const value = datum[key];
 
-        if (typeof value === 'number') {
+        if (isNumber(value)) {
           accumulator.runningTotals[key] += value;
         }
 
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromBarOrLineChartConfiguration.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromBarOrLineChartConfiguration.ts
index e8d775321e..6ab3bf74a7 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromBarOrLineChartConfiguration.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromBarOrLineChartConfiguration.ts
@@ -1,7 +1,7 @@
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { GRAPH_DEFAULT_DATE_GRANULARITY } from '@/page-layout/widgets/graph/constants/GraphDefaultDateGranularity.constant';
 import { getGroupByOrderBy } from '@/page-layout/widgets/graph/utils/getGroupByOrderBy';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import {
   type AggregateOrderByWithGroupByField,
   type ObjectRecordOrderByForCompositeField,
@@ -61,11 +61,11 @@ export const generateGroupByQueryVariablesFromBarOrLineChartConfiguration = ({
 
   const isFieldXDate = isFieldMetadataDateKind(groupByFieldX.type);
 
-  const isFieldXNestedDate = isNestedFieldDateType(
-    groupByFieldX,
-    groupBySubFieldNameX,
+  const isFieldXNestedDate = isRelationNestedFieldDateKind({
+    relationField: groupByFieldX,
+    relationNestedFieldName: groupBySubFieldNameX,
     objectMetadataItems,
-  );
+  });
 
   const shouldApplyDateGranularityX = isFieldXDate || isFieldXNestedDate;
 
@@ -87,11 +87,11 @@ export const generateGroupByQueryVariablesFromBarOrLineChartConfiguration = ({
   if (isDefined(groupByFieldY)) {
     const isFieldYDate = isFieldMetadataDateKind(groupByFieldY.type);
 
-    const isFieldYNestedDate = isNestedFieldDateType(
-      groupByFieldY,
-      groupBySubFieldNameY,
+    const isFieldYNestedDate = isRelationNestedFieldDateKind({
+      relationField: groupByFieldY,
+      relationNestedFieldName: groupBySubFieldNameY,
       objectMetadataItems,
-    );
+    });
 
     const shouldApplyDateGranularityY = isFieldYDate || isFieldYNestedDate;
 
@@ -137,11 +137,11 @@ export const generateGroupByQueryVariablesFromBarOrLineChartConfiguration = ({
   ) {
     const isFieldYDateForOrderBy = isFieldMetadataDateKind(groupByFieldY.type);
 
-    const isFieldYNestedDateForOrderBy = isNestedFieldDateType(
-      groupByFieldY,
-      groupBySubFieldNameY,
+    const isFieldYNestedDateForOrderBy = isRelationNestedFieldDateKind({
+      relationField: groupByFieldY,
+      relationNestedFieldName: groupBySubFieldNameY,
       objectMetadataItems,
-    );
+    });
 
     const shouldApplyDateGranularityYForOrderBy =
       isFieldYDateForOrderBy || isFieldYNestedDateForOrderBy;
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromPieChartConfiguration.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromPieChartConfiguration.ts
index a47c5c6dfe..5d54856ce6 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromPieChartConfiguration.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/generateGroupByQueryVariablesFromPieChartConfiguration.ts
@@ -1,7 +1,7 @@
 import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataItem';
 import { GRAPH_DEFAULT_DATE_GRANULARITY } from '@/page-layout/widgets/graph/constants/GraphDefaultDateGranularity.constant';
 import { getGroupByOrderBy } from '@/page-layout/widgets/graph/utils/getGroupByOrderBy';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import {
   type AggregateOrderByWithGroupByField,
   type ObjectRecordOrderByForCompositeField,
@@ -48,11 +48,11 @@ export const generateGroupByQueryVariablesFromPieChartConfiguration = ({
 
   const isFieldDate = isFieldMetadataDateKind(groupByField.type);
 
-  const isNestedDate = isNestedFieldDateType(
-    groupByField,
-    groupBySubFieldName,
+  const isNestedDate = isRelationNestedFieldDateKind({
+    relationField: groupByField,
+    relationNestedFieldName: groupBySubFieldName,
     objectMetadataItems,
-  );
+  });
 
   const shouldApplyDateGranularity = isFieldDate || isNestedDate;
 
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isNestedFieldDateType.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind.ts
similarity index 65%
rename from packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isNestedFieldDateType.ts
rename to packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind.ts
index 075a067690..2712ee1a77 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isNestedFieldDateType.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind.ts
@@ -3,21 +3,25 @@ import { type ObjectMetadataItem } from '@/object-metadata/types/ObjectMetadataI
 import { isFieldRelation } from '@/object-record/record-field/ui/types/guards/isFieldRelation';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 
-export const isNestedFieldDateType = (
-  field: FieldMetadataItem,
-  subFieldName: string | undefined,
-  objectMetadataItems: ObjectMetadataItem[],
-): boolean => {
-  if (!isDefined(subFieldName)) {
+export const isRelationNestedFieldDateKind = ({
+  relationField,
+  relationNestedFieldName,
+  objectMetadataItems,
+}: {
+  relationField: FieldMetadataItem;
+  relationNestedFieldName: string | undefined;
+  objectMetadataItems: ObjectMetadataItem[];
+}): boolean => {
+  if (!isDefined(relationNestedFieldName)) {
     return false;
   }
 
-  if (!isFieldRelation(field)) {
+  if (!isFieldRelation(relationField)) {
     return false;
   }
 
   const targetObjectNameSingular =
-    field.relation?.targetObjectMetadata?.nameSingular;
+    relationField.relation?.targetObjectMetadata?.nameSingular;
 
   if (!isDefined(targetObjectNameSingular)) {
     return false;
@@ -31,7 +35,7 @@ export const isNestedFieldDateType = (
     return false;
   }
 
-  const nestedFieldName = subFieldName.split('.')[0];
+  const nestedFieldName = relationNestedFieldName.split('.')[0];
   const nestedField = targetObjectMetadataItem.fields.find(
     (f) => f.name === nestedFieldName,
   );
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/transformGroupByDataToLineChartData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/transformGroupByDataToLineChartData.ts
index 9697297a27..a279c13518 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/transformGroupByDataToLineChartData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/utils/transformGroupByDataToLineChartData.ts
@@ -7,9 +7,9 @@ import { type LineChartSeries } from '@/page-layout/widgets/graph/graphWidgetLin
 import { type GroupByRawResult } from '@/page-layout/widgets/graph/types/GroupByRawResult';
 import { type RawDimensionValue } from '@/page-layout/widgets/graph/types/RawDimensionValue';
 import { filterGroupByResults } from '@/page-layout/widgets/graph/utils/filterGroupByResults';
+import { isRelationNestedFieldDateKind } from '@/page-layout/widgets/graph/utils/isRelationNestedFieldDateKind';
 import { transformOneDimensionalGroupByToLineChartData } from '@/page-layout/widgets/graph/utils/transformOneDimensionalGroupByToLineChartData';
 import { transformTwoDimensionalGroupByToLineChartData } from '@/page-layout/widgets/graph/utils/transformTwoDimensionalGroupByToLineChartData';
-import { isNestedFieldDateType } from '@/page-layout/widgets/graph/utils/isNestedFieldDateType';
 import { isDefined, isFieldMetadataDateKind } from 'twenty-shared/utils';
 import {
   AxisNameDisplay,
@@ -127,11 +127,11 @@ export const transformGroupByDataToLineChartData = ({
   const showLegend = configuration.displayLegend ?? true;
 
   const isDateField = isFieldMetadataDateKind(groupByFieldX.type);
-  const isNestedDateField = isNestedFieldDateType(
-    groupByFieldX,
-    primaryAxisSubFieldName,
+  const isNestedDateField = isRelationNestedFieldDateKind({
+    relationField: groupByFieldX,
+    relationNestedFieldName: primaryAxisSubFieldName,
     objectMetadataItems,
-  );
+  });
 
   const primaryAxisDateGranularity =
     isDateField || isNestedDateField
@@ -144,11 +144,11 @@ export const transformGroupByDataToLineChartData = ({
 
   const isSecondaryNestedDateField =
     isDefined(groupByFieldY) &&
-    isNestedFieldDateType(
-      groupByFieldY,
-      secondaryAxisSubFieldName,
+    isRelationNestedFieldDateKind({
+      relationField: groupByFieldY,
+      relationNestedFieldName: secondaryAxisSubFieldName,
       objectMetadataItems,
-    );
+    });
 
   const secondaryAxisDateGranularity =
     isSecondaryDateField || isSecondaryNestedDateField