diff --git a/TestBenchFramework/BenchControl/DataEntry/Standard/CycleBeginningForm.cs b/TestBenchFramework/BenchControl/DataEntry/Standard/CycleBeginningForm.cs
index f87a41123..9795573c2 100644
--- a/TestBenchFramework/BenchControl/DataEntry/Standard/CycleBeginningForm.cs
+++ b/TestBenchFramework/BenchControl/DataEntry/Standard/CycleBeginningForm.cs
@@ -37,15 +37,11 @@ namespace TBF.BenchControl.DataEntry.Standard
             Height = 147 + WaterMetersCount * 90;
         }
 
-        /// <summary> Parameterless constructor for 3 watermeters </summary>
-        public CycleBeginningForm()
-            : this(3)
-        {
-		}
-
         private void CycleBeginningForm_Load(object sender, EventArgs e)
         {
 			Localize();
+			
+			PrepareOrderCombo(orderComboBox);
 
             if (WaterMetersCount < 1) groupBox1.Visible = false;
             if (WaterMetersCount < 2) groupBox2.Visible = false;
@@ -58,6 +54,7 @@ namespace TBF.BenchControl.DataEntry.Standard
 		void Localize()
 		{
 			Text = Strings.Data;
+			orderGroupBox.Text = Strings.Purchase_Order;
 			groupBox1.Text = Strings.Water_Meter + " 1";
 			groupBox2.Text = Strings.Water_Meter + " 2";
 			groupBox3.Text = Strings.Water_Meter + " 3";
@@ -73,9 +70,28 @@ namespace TBF.BenchControl.DataEntry.Standard
 			okButton.Text = Strings.OkBtnText;
 		}
 
-        private void okButton_Click(object sender, EventArgs e)
+		/// <summary>
+		/// Load Purchase order combo box items from the LocalSettings PurchaseOrderHistory array
+		/// </summary>
+		/// <param name="orderComboBox">Puchase order ComboBox</param>
+		void PrepareOrderCombo(ComboBox orderComboBox)
+		{
+			for (int i = 0; i < Program.LocalSettings.PurchaseOrderHistoryCount; i++)
+			{
+				orderComboBox.Items.Add(Program.LocalSettings.PurchaseOrderHistory[i]);
+			}
+
+			if (orderComboBox.Items.Count > 0)
+			{
+				orderComboBox.Text = orderComboBox.Items[0].ToString();
+			}
+		}
+
+		private void okButton_Click(object sender, EventArgs e)
         {
 			PurchaseOrder = orderComboBox.Text;
+			Program.LocalSettings.UpdatePurchaseOrderHistory(orderComboBox.Text);
+
             if (WaterMetersCount >= 1) { SNText[0] = textBox1.Text; Disabled[0] = !checkBox1.Checked; }
             if (WaterMetersCount >= 2) { SNText[1] = textBox2.Text; Disabled[1] = !checkBox2.Checked; }
             if (WaterMetersCount >= 3) { SNText[2] = textBox3.Text; Disabled[2] = !checkBox3.Checked; }
diff --git a/TestBenchFramework/LocalSettings.cs b/TestBenchFramework/LocalSettings.cs
index b9507000c..e91012724 100644
--- a/TestBenchFramework/LocalSettings.cs
+++ b/TestBenchFramework/LocalSettings.cs
@@ -126,6 +126,11 @@ namespace TBF
         public int OneProcedureDlgWidth;
         public int OneProcedureDlgHeight;
 
+		/// Purchase order history
+		public string[] PurchaseOrderHistory;
+		[XmlIgnore]
+		public int PurchaseOrderHistoryCount { get { return (PurchaseOrderHistory != null) ? PurchaseOrderHistory.Length : 0; } }
+
 		/// Configuration of results
         public Forms.ResultsConfig.Meters ResultsConfigMeters;
 		public Forms.ResultsConfig.TestsAre ResultsConfigTests;
@@ -198,5 +203,49 @@ namespace TBF
                 string msg = e.Message;
             }
         }
+
+		/// <summary>
+		/// Updates purchase order history
+		/// </summary>
+		/// <param name="lastPurchaseOrder"></param>
+		public void UpdatePurchaseOrderHistory(string lastPurchaseOrder)
+		{
+			if (string.IsNullOrEmpty(lastPurchaseOrder)) return;
+
+			int match = -1;
+			for (int i = 0; i < PurchaseOrderHistoryCount; i++)
+			{
+				if (PurchaseOrderHistory[i] == lastPurchaseOrder)
+				{
+					match = i;
+					break;
+				}
+			}
+
+			if (match >= 0 || PurchaseOrderHistoryCount >= 10)
+			{
+				/// History does not have to be or should not be extended
+				if (match < 0) match = PurchaseOrderHistoryCount - 1;
+
+				for (int j = match; j > 0; j--)
+				{
+					PurchaseOrderHistory[j] = PurchaseOrderHistory[j - 1];
+				}
+				Program.LocalSettings.PurchaseOrderHistory[0] = lastPurchaseOrder;
+			}
+			else
+			{
+				/// History wiil be extended, new item inserted at the beginning
+				string[] newHistory = new string[Program.LocalSettings.PurchaseOrderHistoryCount + 1];
+				newHistory[0] = lastPurchaseOrder;
+				for (int j = 1; j <= PurchaseOrderHistoryCount; j++)
+				{
+					newHistory[j] = PurchaseOrderHistory[j - 1];
+				}
+				PurchaseOrderHistory = newHistory;
+			}
+			Save();
+		}
+
     }
 }
diff --git a/TestBenchFramework/Resources/Strings.Designer.cs b/TestBenchFramework/Resources/Strings.Designer.cs
index 578cd1a60..ae80a3444 100644
--- a/TestBenchFramework/Resources/Strings.Designer.cs
+++ b/TestBenchFramework/Resources/Strings.Designer.cs
@@ -1626,6 +1626,15 @@ namespace TBF.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Purchase Order.
+        /// </summary>
+        internal static string Purchase_Order {
+            get {
+                return ResourceManager.GetString("Purchase_Order", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Fill the test bench with water?.
         /// </summary>
diff --git a/TestBenchFramework/Resources/Strings.resx b/TestBenchFramework/Resources/Strings.resx
index c74b6fa1b..b262ab136 100644
--- a/TestBenchFramework/Resources/Strings.resx
+++ b/TestBenchFramework/Resources/Strings.resx
@@ -994,4 +994,7 @@
   <data name="Closing_valve_Pump_off" xml:space="preserve">
     <value>Closing input valve, switching the pump off</value>
   </data>
+  <data name="Purchase_Order" xml:space="preserve">
+    <value>Purchase Order</value>
+  </data>
 </root>
\ No newline at end of file