diff --git a/erpnext/manufacturing/doctype/sales_forecast/sales_forecast.py b/erpnext/manufacturing/doctype/sales_forecast/sales_forecast.py
index 86d9274052f219bad575abcbed1785aae2df3c66..9167d4dcf327ae418d3f596e560a7e8f1448c7cd 100644
--- a/erpnext/manufacturing/doctype/sales_forecast/sales_forecast.py
+++ b/erpnext/manufacturing/doctype/sales_forecast/sales_forecast.py
@@ -126,7 +126,7 @@ class SalesForecast(Document):
 			_sales_data = pd_sales_data.set_index("date").resample(resample_val).sum()["qty"]
 
 			model = ExponentialSmoothing(
-				_sales_data, trend="add", seasonal="mul", seasonal_periods=seasonal_periods
+				_sales_data, trend="add", seasonal="add", seasonal_periods=seasonal_periods
 			)
 
 			fit = model.fit()
@@ -136,8 +136,6 @@ class SalesForecast(Document):
 			if forecast_data:
 				self.add_sales_forecast_item(item_code, forecast_data)
 
-		self.save()
-
 	def add_sales_forecast_item(self, item_code, forecast_data):
 		item_details = frappe.db.get_value(
 			"Item", item_code, ["item_name", "stock_uom as uom", "name as item_code"], as_dict=True