diff --git a/changes.md b/changes.md
index 8f276bbb5d5..26a50541137 100644
--- a/changes.md
+++ b/changes.md
@@ -6,3 +6,11 @@
 - added method `apiRoot.withProjectKey().productTailoring().head()`
 </details>
 
+**Import changes**
+
+<details>
+<summary>Added Type(s)</summary>
+
+- added type `NewMasterVariantAdditionNotAllowedError`
+</details>
+
diff --git a/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/IErrorObject.cs b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/IErrorObject.cs
index 63b308b93fb..0333eea01d3 100644
--- a/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/IErrorObject.cs
+++ b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/IErrorObject.cs
@@ -23,6 +23,7 @@ namespace commercetools.Sdk.ImportApi.Models.Errors
     [SubTypeDiscriminator("InvalidJsonInput", typeof(commercetools.Sdk.ImportApi.Models.Errors.InvalidJsonInput))]
     [SubTypeDiscriminator("InvalidOperation", typeof(commercetools.Sdk.ImportApi.Models.Errors.InvalidOperation))]
     [SubTypeDiscriminator("InvalidTransition", typeof(commercetools.Sdk.ImportApi.Models.Errors.InvalidStateTransitionError))]
+    [SubTypeDiscriminator("NewMasterVariantAdditionNotAllowed", typeof(commercetools.Sdk.ImportApi.Models.Errors.NewMasterVariantAdditionNotAllowedError))]
     [SubTypeDiscriminator("ReferencedResourceNotFound", typeof(commercetools.Sdk.ImportApi.Models.Errors.ReferencedResourceNotFound))]
     [SubTypeDiscriminator("RequiredField", typeof(commercetools.Sdk.ImportApi.Models.Errors.RequiredFieldError))]
     [SubTypeDiscriminator("ResourceCreation", typeof(commercetools.Sdk.ImportApi.Models.Errors.ResourceCreationError))]
@@ -143,6 +144,12 @@ static commercetools.Sdk.ImportApi.Models.Errors.InvalidStateTransitionError Inv
             init?.Invoke(t);
             return t;
         }
+        static commercetools.Sdk.ImportApi.Models.Errors.NewMasterVariantAdditionNotAllowedError NewMasterVariantAdditionNotAllowed(Action<commercetools.Sdk.ImportApi.Models.Errors.NewMasterVariantAdditionNotAllowedError> init = null)
+        {
+            var t = new commercetools.Sdk.ImportApi.Models.Errors.NewMasterVariantAdditionNotAllowedError();
+            init?.Invoke(t);
+            return t;
+        }
         static commercetools.Sdk.ImportApi.Models.Errors.ReferencedResourceNotFound ReferencedResourceNotFound(Action<commercetools.Sdk.ImportApi.Models.Errors.ReferencedResourceNotFound> init = null)
         {
             var t = new commercetools.Sdk.ImportApi.Models.Errors.ReferencedResourceNotFound();
diff --git a/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/INewMasterVariantAdditionNotAllowedError.cs b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/INewMasterVariantAdditionNotAllowedError.cs
new file mode 100644
index 00000000000..fd19b99f241
--- /dev/null
+++ b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/INewMasterVariantAdditionNotAllowedError.cs
@@ -0,0 +1,11 @@
+using commercetools.Base.CustomAttributes;
+// ReSharper disable CheckNamespace
+namespace commercetools.Sdk.ImportApi.Models.Errors
+{
+    [DeserializeAs(typeof(commercetools.Sdk.ImportApi.Models.Errors.NewMasterVariantAdditionNotAllowedError))]
+    public partial interface INewMasterVariantAdditionNotAllowedError : IErrorObject
+    {
+        new string Message { get; set; }
+
+    }
+}
diff --git a/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/NewMasterVariantAdditionNotAllowedError.cs b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/NewMasterVariantAdditionNotAllowedError.cs
new file mode 100644
index 00000000000..0fc7c91d6c6
--- /dev/null
+++ b/commercetools.Sdk/commercetools.Sdk.ImportApi/Generated/commercetoolsSdkImportApi/Models/Errors/NewMasterVariantAdditionNotAllowedError.cs
@@ -0,0 +1,16 @@
+
+
+namespace commercetools.Sdk.ImportApi.Models.Errors
+{
+
+    public partial class NewMasterVariantAdditionNotAllowedError : INewMasterVariantAdditionNotAllowedError
+    {
+        public string Code { get; set; }
+
+        public string Message { get; set; }
+        public NewMasterVariantAdditionNotAllowedError()
+        {
+            this.Code = "NewMasterVariantAdditionNotAllowed";
+        }
+    }
+}
diff --git a/references.txt b/references.txt
index e4eeb529b7f..5845bb39dd7 100644
--- a/references.txt
+++ b/references.txt
@@ -288,3 +288,4 @@ c77ec902f368c2c31505fcb65a835ce148350077
 e985f4b7aa55610705ee49bd3eb645c2fd03eb6c
 7b61d389a7b8bd5dac2d780c6b6fbea0b881400c
 c27603f949e869148570ebb8bd3ec6db34a985b7
+82bca33a98d14907ea79e2cca281625dd82cdf0d