diff --git a/ifrs17/Import/3ImportScope-Actuals.ipynb b/ifrs17/Import/3ImportScope-Actuals.ipynb
index ed072c6a..0fa9b664 100644
--- a/ifrs17/Import/3ImportScope-Actuals.ipynb
+++ b/ifrs17/Import/3ImportScope-Actuals.ipynb
@@ -543,7 +543,7 @@
                 "\n",
                 "\npublic interface ClDeferrable : NominalDeferrable{",
                 "\n    private int projectionShift => GetStorage().GetShift(Identity.Id.ProjectionPeriod);",
-                "\n    private IEnumerable<AocStep> previousAocSteps => GetScope<PreviousAocSteps>((Identity.Id, InputSource.Cashflow)).Values;",
+                "\n    private IEnumerable<AocStep> previousAocSteps => GetScope<PreviousAocSteps>((Identity.Id, InputSource.Cashflow)).Values.Where(aocStep => aocStep.Novelty != Novelties.C);",
                 "\n    double referenceCashflow => previousAocSteps",
                 "\n        .GroupBy(x => x.Novelty, (k, aocs) => aocs.Last())",
                 "\n        .Sum(aoc => GetScope<NominalCashflow>((Identity.Id with {AocType = aoc.AocType, Novelty = aoc.Novelty}, AmountTypes.DAE, EstimateTypes.BE, (int?)null)).Values",
diff --git a/ifrs17/Import/Importers.ipynb b/ifrs17/Import/Importers.ipynb
index 66ec8b69..184c65d2 100644
--- a/ifrs17/Import/Importers.ipynb
+++ b/ifrs17/Import/Importers.ipynb
@@ -1221,7 +1221,7 @@
                 "\n                                            .ToArray().Prune();",
                 "\n            ",
                 "\n                                    //Instantiate SingleDataNodeParameter",
-                "\n                                    return new SingleDataNodeParameter {",
+                "\n                                    var singleDataNodeParameter = new SingleDataNodeParameter {",
                 "\n                                        Year = args.Year,",
                 "\n                                        Month = args.Month,",
                 "\n                                        Scenario = args.Scenario,",
@@ -1234,6 +1234,7 @@
                 "\n                                        PremiumAllocation = (datarow.Field<object>(nameof(SingleDataNodeParameter.PremiumAllocation)))",
                 "\n                                                                .ToString().CheckStringForExponentialAndConvertToDouble(),",
                 "\n                                    };",
+                "\n                                    return ExtendSingleDataNodeParameter(singleDataNodeParameter, datarow);",
                 "\n                                })",
                 "\n                                .WithType<InterDataNodeParameter>( (dataset, datarow) => {",
                 "\n",
diff --git a/ifrs17/Utils/ImportCalculationMethods.ipynb b/ifrs17/Utils/ImportCalculationMethods.ipynb
index e6daa007..8017232f 100644
--- a/ifrs17/Utils/ImportCalculationMethods.ipynb
+++ b/ifrs17/Utils/ImportCalculationMethods.ipynb
@@ -157,6 +157,24 @@
             "execution_count": 0,
             "outputs": []
         },
+        {
+            "cell_type": "markdown",
+            "source": [
+                "## Data Node Parameters"
+            ],
+            "metadata": {},
+            "execution_count": 0,
+            "outputs": []
+        },
+        {
+            "cell_type": "code",
+            "source": [
+                "public SingleDataNodeParameter ExtendSingleDataNodeParameter(SingleDataNodeParameter singleDataNodeParameter, IDataRow datarow) => singleDataNodeParameter;"
+            ],
+            "metadata": {},
+            "execution_count": 0,
+            "outputs": []
+        },
         {
             "cell_type": "markdown",
             "source": [