diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/CustomArcsLayer.tsx b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/CustomArcsLayer.tsx
index 3904337b9c..1be58d45d2 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/CustomArcsLayer.tsx
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/CustomArcsLayer.tsx
@@ -38,7 +38,7 @@ export const CustomArcsLayer = ({
       {transition((_, datum) => {
         const isDimmed =
           isDefined(graphWidgetHighlightedLegendId) &&
-          String(graphWidgetHighlightedLegendId) !== String(datum.id);
+          String(graphWidgetHighlightedLegendId) !== String(datum.data.id);
         const arcLength = datum.arc.endAngle - datum.arc.startAngle;
         const padAngleRadians = (padAngle * Math.PI) / 180;
         const clampedPadAngle = Math.min(
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/GraphWidgetPieChart.tsx b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/GraphWidgetPieChart.tsx
index 05b4f393e9..962150e349 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/GraphWidgetPieChart.tsx
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/components/GraphWidgetPieChart.tsx
@@ -194,6 +194,7 @@ export const GraphWidgetPieChart = ({
             enableArcLabels={false}
             tooltip={() => null}
             layers={[ArcsLayer, 'arcLinkLabels']}
+            id={(datum: PieChartDataItem) => `${id}:${String(datum.id)}`}
             arcLinkLabel={(datum: ComputedDatum<PieChartDataItem>) => {
               const formattedValue = getPieChartFormattedValue({
                 datum,
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartFormattedValue.test.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartFormattedValue.test.ts
index fa95c436a7..dc889f99fe 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartFormattedValue.test.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartFormattedValue.test.ts
@@ -47,10 +47,12 @@ describe('getPieChartFormattedValue', () => {
 
   const createMockDatum = (
     id: string,
+    options?: { computedId?: string },
   ): ComputedDatum<PieChartDataItemWithColor> =>
     ({
-      id,
+      id: options?.computedId ?? id,
       value: 0,
+      data: { id, value: 0 },
     }) as unknown as ComputedDatum<PieChartDataItemWithColor>;
 
   const defaultFormatOptions = {
@@ -81,6 +83,20 @@ describe('getPieChartFormattedValue', () => {
 
       expect(result).toBeNull();
     });
+
+    it('should match by datum.data.id when computed id is namespaced per widget', () => {
+      const datum = createMockDatum('slice1', {
+        computedId: 'widget-abc:slice1',
+      });
+
+      const result = getPieChartFormattedValue({
+        datum,
+        enrichedData: mockEnrichedData,
+        formatOptions: defaultFormatOptions,
+      });
+
+      expect(result).toContain('30');
+    });
   });
 
   describe('percentage display type', () => {
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartTooltipData.test.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartTooltipData.test.ts
index 1f4f0fd171..519666ea21 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartTooltipData.test.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/__tests__/getPieChartTooltipData.test.ts
@@ -47,10 +47,12 @@ describe('getPieChartTooltipData', () => {
 
   const createMockDatum = (
     id: string,
+    options?: { computedId?: string },
   ): ComputedDatum<PieChartDataItemWithColor> =>
     ({
-      id,
+      id: options?.computedId ?? id,
       value: 0,
+      data: { id, value: 0 },
     }) as unknown as ComputedDatum<PieChartDataItemWithColor>;
 
   const defaultFormatOptions = {
@@ -148,6 +150,21 @@ describe('getPieChartTooltipData', () => {
       expect(result).toBeNull();
     });
 
+    it('should match by datum.data.id when computed id is namespaced per widget', () => {
+      const datum = createMockDatum('Product A', {
+        computedId: 'widget-xyz:Product A',
+      });
+
+      const result = getPieChartTooltipData({
+        datum,
+        enrichedData: mockEnrichedData,
+        formatOptions: defaultFormatOptions,
+      });
+
+      expect(result?.tooltipItem.key).toBe('Product A');
+      expect(result?.tooltipItem.value).toBe(500);
+    });
+
     it('should return null when enrichedData is empty', () => {
       const datum = createMockDatum('Product A');
 
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartFormattedValue.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartFormattedValue.ts
index 54396a012a..f6c8d44bad 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartFormattedValue.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartFormattedValue.ts
@@ -22,7 +22,7 @@ export const getPieChartFormattedValue = ({
   displayType,
 }: GetPieChartFormattedValueParams): string | null => {
   const item = enrichedData.find(
-    (enrichedDataItem) => enrichedDataItem.id === datum.id,
+    (enrichedDataItem) => enrichedDataItem.id === datum.data.id,
   );
   if (!isDefined(item)) return null;
 
diff --git a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartTooltipData.ts b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartTooltipData.ts
index 5cceed4724..8d6921333f 100644
--- a/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartTooltipData.ts
+++ b/packages/twenty-front/src/modules/page-layout/widgets/graph/graph-widget-pie-chart/utils/getPieChartTooltipData.ts
@@ -23,7 +23,7 @@ export const getPieChartTooltipData = ({
   tooltipItem: GraphWidgetTooltipItem;
 } | null => {
   const item = enrichedData.find(
-    (enrichedDataItem) => enrichedDataItem.id === datum.id,
+    (enrichedDataItem) => enrichedDataItem.id === datum.data.id,
   );
   if (!isDefined(item)) return null;