diff --git a/pdfexcel4DNwithxlrd.py b/pdfexcel4DNwithxlrd.py
index 23248b8..b561739 100644
--- a/pdfexcel4DNwithxlrd.py
+++ b/pdfexcel4DNwithxlrd.py
@@ -179,12 +179,9 @@ def read_DN_excel(filename):
 					else:
 						data.append(row)
 
-	# print (f'data: {data}')
+	print (f'data: {data}')
 
 	for idx, x in enumerate(data):
-		if x[0].upper() == "ET-06/A1.":		### Change the source from "ET-06/A1." to "ET-06/A1.BOX_100" and replace the UOM from "BOX_100" to "BOX"
-			x[0] = "ET-06/A1.BOX_100"
-			x[2] = x[2].replace("BOX_100", "BOX")
 		for colidx, col in enumerate(x):	### change the empty cell into None
 			if col == "":
 				data[idx][colidx]=None
@@ -229,6 +226,13 @@ def read_DN_excel(filename):
 
 	print(f'len data={len(data)}')
 
+	for idx, x in enumerate(data):
+		# print(idx, x)
+		if x[0] !=None and x[0].upper() == "ET-06/A1.":		### Change the source from "ET-06/A1." to "ET-06/A1.BOX_100" and replace the UOM from "BOX_100" to "BOX"
+			print(idx, x)
+			x[0] = "ET-06/A1.BOX_100"
+			x[2] = x[2].replace("BOX_100", "BOX")
+			print(idx, x)
 
 	newdata=[]
 
diff --git a/qbpurchaseorderquery.py b/qbpurchaseorderquery.py
index 4be1ef6..cc0b21a 100644
--- a/qbpurchaseorderquery.py
+++ b/qbpurchaseorderquery.py
@@ -229,6 +229,7 @@ class PurchaseOrderQuery:
         _bolfoundrefnum=False
         _bol_dictisadded=False
         Error_msg = None
+        
         for poidx, _po in enumerate(self.PurchaseOrderList):
             if _po['RefNumber']==_dict['RefNum']:
                 _bolfoundrefnum=True
@@ -303,7 +304,9 @@ class PurchaseOrderQuery:
         else:
             _dflist = self.dfDN.to_dict('records')
         # print(self.dfDN)
-        # print(f'_dflist:{_dflist}')
+        # print(f'_dflist1:{_dflist}')
+        # print("")
+        # print(f'self.PurchaseOrderList: {self.PurchaseOrderList}')
         for idx, xdf in enumerate(_dflist):
             _boladdDN, _Errormsg = self.addDNQtyToPurchaseOrderList(xdf)
             # print(f'prepareItemReceipt->_Errormsg:{_Errormsg}')
@@ -341,7 +344,7 @@ class PurchaseOrderQuery:
         else:
             dnlist = self.DN
         df = pd.DataFrame(dnlist)
-        # print(df)
+        print(f'df from dnlist: {df}')
         df['RefNum']= df['No.SO'].apply(lambda x: "L"+ x.split("L-")[1])
         # print(df)
         ext_doc_no=df['RefNum'].unique().tolist()