diff --git a/packages/twenty-server/src/engine/api/graphql/workspace-schema-builder/utils/get-available-aggregations-from-object-fields.util.ts b/packages/twenty-server/src/engine/api/graphql/workspace-schema-builder/utils/get-available-aggregations-from-object-fields.util.ts
index 3c872a5246..32a3a45bb3 100644
--- a/packages/twenty-server/src/engine/api/graphql/workspace-schema-builder/utils/get-available-aggregations-from-object-fields.util.ts
+++ b/packages/twenty-server/src/engine/api/graphql/workspace-schema-builder/utils/get-available-aggregations-from-object-fields.util.ts
@@ -161,6 +161,7 @@ export const getAvailableAggregationsFromObjectFields = (
             description: `Maximal amount contained in the field ${field.name}`,
             fromField: field.name,
             fromSubFields: getSubfieldsForAggregateOperation(field.type),
+            subFieldForNumericOperation: 'amountMicros',
             fromFieldType: field.type,
             aggregateOperation: AggregateOperations.MAX,
           };
@@ -170,6 +171,7 @@ export const getAvailableAggregationsFromObjectFields = (
             description: `Sum of amounts contained in the field ${field.name}`,
             fromField: field.name,
             fromSubFields: getSubfieldsForAggregateOperation(field.type),
+            subFieldForNumericOperation: 'amountMicros',
             fromFieldType: field.type,
             aggregateOperation: AggregateOperations.SUM,
           };
@@ -179,6 +181,7 @@ export const getAvailableAggregationsFromObjectFields = (
             description: `Average amount contained in the field ${field.name}`,
             fromField: field.name,
             fromSubFields: getSubfieldsForAggregateOperation(field.type),
+            subFieldForNumericOperation: 'amountMicros',
             fromFieldType: field.type,
             aggregateOperation: AggregateOperations.AVG,
           };
diff --git a/packages/twenty-server/src/engine/workspace-manager/standard-objects-prefill-data/views/opportunity-by-stage.view.ts b/packages/twenty-server/src/engine/workspace-manager/standard-objects-prefill-data/views/opportunity-by-stage.view.ts
index 8d7f72950b..0e68f90d2c 100644
--- a/packages/twenty-server/src/engine/workspace-manager/standard-objects-prefill-data/views/opportunity-by-stage.view.ts
+++ b/packages/twenty-server/src/engine/workspace-manager/standard-objects-prefill-data/views/opportunity-by-stage.view.ts
@@ -44,7 +44,7 @@ export const opportunitiesByStageView = ({
     key: null,
     position: 2,
     icon: 'IconLayoutKanban',
-    kanbanAggregateOperation: AggregateOperations.MIN,
+    kanbanAggregateOperation: AggregateOperations.SUM,
     kanbanAggregateOperationFieldMetadataId:
       opportunityObjectMetadata.fields.find(
         (field) => field.standardId === OPPORTUNITY_STANDARD_FIELD_IDS.amount,
diff --git a/packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/view/compute-standard-opportunity-views.util.ts b/packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/view/compute-standard-opportunity-views.util.ts
index 524cd37825..445b962858 100644
--- a/packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/view/compute-standard-opportunity-views.util.ts
+++ b/packages/twenty-server/src/engine/workspace-manager/twenty-standard-application/utils/view/compute-standard-opportunity-views.util.ts
@@ -34,7 +34,7 @@ export const computeStandardOpportunityViews = (
         position: 2,
         icon: 'IconLayoutKanban',
         mainGroupByFieldName: 'stage',
-        kanbanAggregateOperation: AggregateOperations.MIN,
+        kanbanAggregateOperation: AggregateOperations.SUM,
         kanbanAggregateOperationFieldName: 'amount',
       },
     }),