diff --git a/app/controllers/calculation.controller.js b/app/controllers/calculation.controller.js
index b91e62c..0110deb 100644
--- a/app/controllers/calculation.controller.js
+++ b/app/controllers/calculation.controller.js
@@ -128,6 +128,20 @@ exports.calculate_month = async (req, res) => {
       });
     }
 
+    // check if the year and quarter window created or not and start the calculation
+    const window = await QuarterlyWindowsConfiguration.findOne({
+      where: {
+        year: year,
+        quarter: quarter
+      }
+    });
+    if (!window) {
+      return res.status(400).json({
+        success: false,
+        message: 'Year and quarter window not created'
+      });
+    }
+
     const service = new IPICalculationService(dbConfig);
     const result = await service.runCompleteCalculation(year, quarter);
     await service.close();