Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -r87c8156d44cba5489f6128da6b31260a4bace1d5 -raa2276eb72eb3bb6e4a69ebe05becdbf28a8356b
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 87c8156d44cba5489f6128da6b31260a4bace1d5)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision aa2276eb72eb3bb6e4a69ebe05becdbf28a8356b)
@@ -23,9 +23,11 @@
 using System.Collections.Generic;
 using System.Linq;
 using Core.Common.Gui.Commands;
+using log4net;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Common.Data.Hydraulics;
 using Ringtoets.Integration.Data;
+using Ringtoets.Integration.Plugin.Properties;
 
 namespace Ringtoets.Integration.Plugin.Merge
 {
@@ -34,6 +36,8 @@
     /// </summary>
     public class AssessmentSectionMergeHandler : IAssessmentSectionMergeHandler
     {
+        private static readonly ILog log = LogManager.GetLogger(typeof(AssessmentSectionMergeHandler));
+
         private readonly IViewCommands viewCommands;
 
         /// <summary>
@@ -99,6 +103,8 @@
                                                        sourceAssessmentSection.WaveHeightCalculationsForLowerLimitNorm);
             MergeHydraulicBoundaryLocationCalculations(targetAssessmentSection.WaveHeightCalculationsForFactorizedLowerLimitNorm,
                                                        sourceAssessmentSection.WaveHeightCalculationsForFactorizedLowerLimitNorm);
+
+            log.Info(Resources.AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_merged);
         }
 
         private static void MergeHydraulicBoundaryLocationCalculations(IEnumerable<HydraulicBoundaryLocationCalculation> targetCalculations,
Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.Designer.cs
===================================================================
diff -u -re0476d8c340b412a22c14d0869888a84e0e4fe5f -raa2276eb72eb3bb6e4a69ebe05becdbf28a8356b
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision e0476d8c340b412a22c14d0869888a84e0e4fe5f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision aa2276eb72eb3bb6e4a69ebe05becdbf28a8356b)
@@ -142,6 +142,16 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Hydraulische belastingen zijn samengevoegd..
+        /// </summary>
+        public static string AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_merged {
+            get {
+                return ResourceManager.GetString("AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLo" +
+                        "cations_merged", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to Er zijn geen trajecten gevonden die samengevoegd kunnen worden..
         /// </summary>
         public static string AssessmentSectionMerger_No_matching_AssessmentSections {
Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.resx
===================================================================
diff -u -re0476d8c340b412a22c14d0869888a84e0e4fe5f -raa2276eb72eb3bb6e4a69ebe05becdbf28a8356b
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.resx	(.../Resources.resx)	(revision e0476d8c340b412a22c14d0869888a84e0e4fe5f)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Properties/Resources.resx	(.../Resources.resx)	(revision aa2276eb72eb3bb6e4a69ebe05becdbf28a8356b)
@@ -203,4 +203,7 @@
   <data name="HydraulicBoundaryDatabase_Calculate_All_ToolTip" xml:space="preserve">
     <value>Alle hydraulische randvoorwaarden berekenen.</value>
   </data>
+  <data name="AssessmentSectionMergeHandler_MergeHydraulicBoundaryLocations_HydraulicBoundaryLocations_merged" xml:space="preserve">
+    <value>Hydraulische belastingen zijn samengevoegd.</value>
+  </data>
 </root>
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs
===================================================================
diff -u -r87c8156d44cba5489f6128da6b31260a4bace1d5 -raa2276eb72eb3bb6e4a69ebe05becdbf28a8356b
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision 87c8156d44cba5489f6128da6b31260a4bace1d5)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision aa2276eb72eb3bb6e4a69ebe05becdbf28a8356b)
@@ -23,6 +23,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Core.Common.Gui.Commands;
+using Core.Common.TestUtil;
 using Core.Common.Util.Extensions;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -150,6 +151,29 @@
         }
 
         [Test]
+        public void PerformMerge_WithAllData_LogMessage()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var viewCommands = mocks.Stub<IViewCommands>();
+            mocks.ReplayAll();
+
+            var handler = new AssessmentSectionMergeHandler(viewCommands);
+
+            // Call
+            Action call = () => handler.PerformMerge(new AssessmentSection(AssessmentSectionComposition.Dike),
+                                                     new AssessmentSection(AssessmentSectionComposition.Dike),
+                                                     Enumerable.Empty<IFailureMechanism>());
+
+            // Assert
+            TestHelper.AssertLogMessagesWithLevelAreGenerated(call, new[]
+            {
+                new Tuple<string, LogLevelConstant>("Hydraulische belastingen zijn samengevoegd.", LogLevelConstant.Info)
+            });
+            mocks.VerifyAll();
+        }
+
+        [Test]
         [TestCaseSource(nameof(GetCalculationsFuncs))]
         public void GivenAssessmentSectionWithHydraulicBoundaryLocationCalculations_WhenTargetAssessmentSectionHasOutput_ThenCalculationsNotChanged(
             Func<AssessmentSection, IEnumerable<HydraulicBoundaryLocationCalculation>> getCalculationsFunc)