Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs
===================================================================
diff -u -rfff1d95ef2a08f34f16ac3f7870acc0a0c68eb83 -rb49aec40751eb5693981ed75a823b9993b9ab8ec
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision fff1d95ef2a08f34f16ac3f7870acc0a0c68eb83)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/MacroStabilityInwardsCalculationService.cs	(.../MacroStabilityInwardsCalculationService.cs)	(revision b49aec40751eb5693981ed75a823b9993b9ab8ec)
@@ -134,20 +134,18 @@
 
             if (macroStabilityInwardsResult.CalculationMessages.Any(cm => cm.ResultType == UpliftVanKernelMessageType.Error))
             {
-                CalculationServiceHelper.LogMessagesAsError(macroStabilityInwardsResult.CalculationMessages
-                                                                                       .Where(cm => cm.ResultType == UpliftVanKernelMessageType.Error)
-                                                                                       .Select(cm => cm.Message).ToArray());
+                CalculationServiceHelper.LogMessagesAsError(new[]
+                {
+                    CreateAggregatedLogMessage(Resources.MacroStabilityInwardsCalculationService_Calculate_Errors_in_MacroStabilityInwards_calculation, macroStabilityInwardsResult)
+                });
             }
             else
             {
                 if (macroStabilityInwardsResult.CalculationMessages.Any())
                 {
                     CalculationServiceHelper.LogMessagesAsWarning(new[]
                     {
-                        Resources.MacroStabilityInwardsCalculationService_Calculate_Warnings_in_MacroStabilityInwards_calculation + Environment.NewLine +
-                        macroStabilityInwardsResult.CalculationMessages
-                                                   .Where(cm => cm.ResultType == UpliftVanKernelMessageType.Warning)
-                                                   .Aggregate(string.Empty, (current, logMessage) => current + $"* {logMessage.Message}{Environment.NewLine}").Trim()
+                        CreateAggregatedLogMessage(Resources.MacroStabilityInwardsCalculationService_Calculate_Warnings_in_MacroStabilityInwards_calculation, macroStabilityInwardsResult)
                     });
                 }
 
@@ -205,5 +203,13 @@
                     MaximumSliceWidth = inputParameters.MaximumSliceWidth
                 });
         }
+
+        private static string CreateAggregatedLogMessage(string baseMessage, UpliftVanCalculatorResult macroStabilityInwardsResult)
+        {
+            return baseMessage
+                   + Environment.NewLine
+                   + macroStabilityInwardsResult.CalculationMessages
+                                                .Aggregate(string.Empty, (current, logMessage) => current + $"* {logMessage.Message}{Environment.NewLine}").Trim();
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.Designer.cs
===================================================================
diff -u -r4759261683e6d005c01763837c8968c1bec9487a -rb49aec40751eb5693981ed75a823b9993b9ab8ec
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 4759261683e6d005c01763837c8968c1bec9487a)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision b49aec40751eb5693981ed75a823b9993b9ab8ec)
@@ -82,8 +82,18 @@
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Er zijn waarschuwingsberichten naar aanleiding van de berekening. Klik op details voor meer informatie..
+        ///   Looks up a localized string similar to Er zijn een of meerdere fouten opgetreden. Klik op details voor meer informatie..
         /// </summary>
+        internal static string MacroStabilityInwardsCalculationService_Calculate_Errors_in_MacroStabilityInwards_calculation {
+            get {
+                return ResourceManager.GetString("MacroStabilityInwardsCalculationService_Calculate_Errors_in_MacroStabilityInwards" +
+                        "_calculation", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Er zijn een of meerdere waarschuwingsberichten. Klik op details voor meer informatie..
+        /// </summary>
         internal static string MacroStabilityInwardsCalculationService_Calculate_Warnings_in_MacroStabilityInwards_calculation {
             get {
                 return ResourceManager.GetString("MacroStabilityInwardsCalculationService_Calculate_Warnings_in_MacroStabilityInwar" +
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.resx
===================================================================
diff -u -r4759261683e6d005c01763837c8968c1bec9487a -rb49aec40751eb5693981ed75a823b9993b9ab8ec
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.resx	(.../Resources.resx)	(revision 4759261683e6d005c01763837c8968c1bec9487a)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.Service/Properties/Resources.resx	(.../Resources.resx)	(revision b49aec40751eb5693981ed75a823b9993b9ab8ec)
@@ -126,8 +126,11 @@
   <data name="MacroStabilityInwardsCalculationService_ValidateInput_Cannot_determine_AssessmentLevel" xml:space="preserve">
     <value>Kan de waterstand niet afleiden op basis van de invoer.</value>
   </data>
+  <data name="MacroStabilityInwardsCalculationService_Calculate_Errors_in_MacroStabilityInwards_calculation" xml:space="preserve">
+    <value>Er zijn een of meerdere fouten opgetreden. Klik op details voor meer informatie.</value>
+  </data>
   <data name="MacroStabilityInwardsCalculationService_Calculate_Warnings_in_MacroStabilityInwards_calculation" xml:space="preserve">
-    <value>Er zijn waarschuwingsberichten naar aanleiding van de berekening. Klik op details voor meer informatie.</value>
+    <value>Er zijn een of meerdere waarschuwingsberichten. Klik op details voor meer informatie.</value>
   </data>
   <data name="MacroStabilityInwardsCalculationService_Validate_Error_in_MacroStabilityInwards_validation" xml:space="preserve">
     <value>Macrostabiliteit binnenwaarts validatie mislukt.</value>