diff --git a/api/src/migrations/1695954091382-AddNewImpactStoredProcedure.ts b/api/src/migrations/1695954091382-AddNewImpactStoredProcedure.ts
index bc4caafa7..234f320f6 100644
--- a/api/src/migrations/1695954091382-AddNewImpactStoredProcedure.ts
+++ b/api/src/migrations/1695954091382-AddNewImpactStoredProcedure.ts
@@ -54,6 +54,52 @@ export class AddNewImpactStoredProcedure1695954091382
 $$
 LANGUAGE plpgsql;
       `);
+
+    await queryRunner.query(`
+    CREATE OR REPLACE FUNCTION get_indicator_coefficient_impact(
+    nameCode text,
+    adminRegionId uuid,
+    material_id uuid)
+    RETURNS float AS
+    $$
+      DECLARE
+        indicator_id uuid;
+        value float;
+    BEGIN
+
+        --get indicatorId
+        SELECT "id" INTO indicator_id FROM "indicator"
+        WHERE "nameCode" = nameCode;
+
+        -- get water footprint value by location, material and indicator
+        EXECUTE format(
+            'SELECT
+                COALESCE (
+                    (
+                    SELECT ic."value"
+                    FROM "indicator_coefficient" ic
+                    WHERE ic."adminRegionId" = $1
+                    AND ic."materialId" = $2
+                    AND ic."indicatorId" = $3
+                    AND ic."value" IS NOT NULL
+                    ),
+                    (
+                    SELECT ic."value"
+                    FROM "indicator_coefficient" ic
+                    WHERE ic."adminRegionId" IS NULL
+                    AND ic."materialId" = $2
+                    AND ic."indicatorId" = $3
+                    AND ic."value" IS NOT NULL
+                    )
+                ) AS value;'
+                )
+            USING adminRegionId, material_id, indicator_id
+            INTO value;
+        RETURN value;
+    END;
+$$
+LANGUAGE plpgsql;
+    `);
   }
 
   public async down(queryRunner: QueryRunner): Promise<void> {}
diff --git a/api/src/modules/indicator-records/services/impact-calculator.service.ts b/api/src/modules/indicator-records/services/impact-calculator.service.ts
index a28f37037..3f8934de5 100644
--- a/api/src/modules/indicator-records/services/impact-calculator.service.ts
+++ b/api/src/modules/indicator-records/services/impact-calculator.service.ts
@@ -319,7 +319,7 @@ export class ImpactCalculator {
       INDICATOR_NAME_CODES.ENL,
       nutrientLoad *
         newIndicatorCoefficients[INDICATOR_NAME_CODES.ENL] *
-        sourcingData.tonnage,
+        sourcingData.tonnage || 0,
     );
 
     return calculatedIndicatorValues;