Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsCalculationService.cs
===================================================================
diff -u -r5d5d353c6b6bdda426324c591029b096621abaa4 -rc786273ba6460b0498c00ff70d1703eee74fadb8
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsCalculationService.cs	(.../GrassCoverErosionInwardsCalculationService.cs)	(revision 5d5d353c6b6bdda426324c591029b096621abaa4)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Service/GrassCoverErosionInwardsCalculationService.cs	(.../GrassCoverErosionInwardsCalculationService.cs)	(revision c786273ba6460b0498c00ff70d1703eee74fadb8)
@@ -307,8 +307,8 @@
                 {
                     if (double.IsNaN(inputParameters.Orientation))
                     {
-                        string message = string.Format(RingtoetsCommonServiceResources.Validation_ValidateInput_No_value_entered_for_0_,
-                                                       GenerateParameterNameWithoutUnits(RingtoetsCommonForms.Orientation_DisplayName));
+                        string message = string.Format(RingtoetsCommonServiceResources.Validation_ValidateInput_No_value_entered_for_ParameterName_0_,
+                                                       ParameterNameExtractor.GetFromDisplayName(RingtoetsCommonForms.Orientation_DisplayName));
                         validationResult.Add(message);
                     }
                 }
@@ -324,11 +324,5 @@
 
             return validationResult.ToArray();
         }
-
-        private static string GenerateParameterNameWithoutUnits(string parameterDescription)
-        {
-            string[] splitString = parameterDescription.Split('[');
-            return splitString.Length != 0 ? splitString[0].ToLower().Trim() : string.Empty;
-        }
     }
 }
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