diff --git a/common/runtime/model.go b/common/runtime/model.go
index d2e0e48e3f..db6c379e62 100644
--- a/common/runtime/model.go
+++ b/common/runtime/model.go
@@ -97,10 +97,11 @@ type ProvisioningParametersDTO struct {
 	ShootName   string `json:"shootName,omitempty"`
 	ShootDomain string `json:"shootDomain,omitempty"`
 
-	OIDC                   *OIDCConfigDTO `json:"oidc,omitempty"`
-	Networking             *NetworkingDTO `json:"networking,omitempty"`
-	Modules                *ModulesDTO    `json:"modules,omitempty"`
-	ShootAndSeedSameRegion *bool          `json:"shootAndSeedSameRegion,omitempty"`
+	OIDC                      *OIDCConfigDTO             `json:"oidc,omitempty"`
+	Networking                *NetworkingDTO             `json:"networking,omitempty"`
+	Modules                   *ModulesDTO                `json:"modules,omitempty"`
+	ShootAndSeedSameRegion    *bool                      `json:"shootAndSeedSameRegion,omitempty"`
+	AdditionalWorkerNodePools []AdditionalWorkerNodePool `json:"additionalWorkerNodePools,omitempty"`
 }
 
 type AutoScalerParameters struct {
@@ -386,3 +387,10 @@ type ModuleDTO struct {
 	Channel              Channel              `json:"channel,omitempty" yaml:"channel,omitempty"`
 	CustomResourcePolicy CustomResourcePolicy `json:"customResourcePolicy,omitempty" yaml:"customResourcePolicy,omitempty"`
 }
+
+type AdditionalWorkerNodePool struct {
+	AutoScalerParameters `json:",inline"`
+
+	Name        string  `json:"name"`
+	MachineType *string `json:"machineType,omitempty"`
+}
diff --git a/internal/broker/instance_create.go b/internal/broker/instance_create.go
index ec384e4cf5..9390a92ad4 100644
--- a/internal/broker/instance_create.go
+++ b/internal/broker/instance_create.go
@@ -295,6 +295,15 @@ func (b *ProvisionEndpoint) validateAndExtract(details domain.ProvisionDetails,
 	if err := parameters.AutoScalerParameters.Validate(autoscalerMin, autoscalerMax); err != nil {
 		return ersContext, parameters, apiresponses.NewFailureResponse(err, http.StatusUnprocessableEntity, err.Error())
 	}
+
+	if IsPreviewPlan(details.PlanID) {
+		for _, workerNodePool := range parameters.AdditionalWorkerNodePools {
+			if err := workerNodePool.AutoScalerParameters.Validate(autoscalerMin, autoscalerMax); err != nil {
+				return ersContext, parameters, apiresponses.NewFailureResponse(err, http.StatusUnprocessableEntity, err.Error())
+			}
+		}
+	}
+
 	if parameters.OIDC.IsProvided() {
 		if err := parameters.OIDC.Validate(); err != nil {
 			return ersContext, parameters, apiresponses.NewFailureResponse(err, http.StatusUnprocessableEntity, err.Error())
diff --git a/internal/broker/instance_create_test.go b/internal/broker/instance_create_test.go
index 73c30fc85e..ceeb38b8cb 100644
--- a/internal/broker/instance_create_test.go
+++ b/internal/broker/instance_create_test.go
@@ -1491,6 +1491,165 @@ func TestProvision_Provision(t *testing.T) {
 		// then
 		require.EqualError(t, err, "while validating input parameters: region: region must be one of the following: \"me-central2\"")
 	})
+
+	t.Run("Should pass with additional worker node pools", func(t *testing.T) {
+		// given
+		memoryStorage := storage.NewMemoryStorage()
+
+		queue := &automock.Queue{}
+		queue.On("Add", mock.AnythingOfType("string"))
+
+		factoryBuilder := &automock.PlanValidator{}
+		factoryBuilder.On("IsPlanSupport", broker.PreviewPlanID).Return(true)
+
+		planDefaults := func(planID string, platformProvider pkg.CloudProvider, provider *pkg.CloudProvider) (*gqlschema.ClusterConfigInput, error) {
+			return &gqlschema.ClusterConfigInput{}, nil
+		}
+		kcBuilder := &kcMock.KcBuilder{}
+		kcBuilder.On("GetServerURL", "").Return("", fmt.Errorf("error"))
+		// #create provisioner endpoint
+		provisionEndpoint := broker.NewProvision(
+			broker.Config{
+				EnablePlans:              []string{"preview"},
+				URL:                      brokerURL,
+				OnlySingleTrialPerGA:     true,
+				EnableKubeconfigURLLabel: true,
+			},
+			gardener.Config{Project: "test", ShootDomain: "example.com", DNSProviders: fixDNSProviders()},
+			memoryStorage.Operations(),
+			memoryStorage.Instances(),
+			memoryStorage.InstancesArchived(),
+			queue,
+			factoryBuilder,
+			broker.PlansConfig{},
+			planDefaults,
+			log,
+			dashboardConfig,
+			kcBuilder,
+			whitelist.Set{},
+			&broker.OneForAllConvergedCloudRegionsProvider{},
+		)
+
+		additionalWorkerNodePools := `[{"name": "name-1", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}, {"name": "name-2", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}]`
+
+		// when
+		_, err := provisionEndpoint.Provision(fixRequestContext(t, "cf-sa30"), instanceID, domain.ProvisionDetails{
+			ServiceID:     serviceID,
+			PlanID:        broker.PreviewPlanID,
+			RawParameters: json.RawMessage(fmt.Sprintf(`{"name": "%s", "region": "%s","additionalWorkerNodePools": %s }`, clusterName, "eu-central-1", additionalWorkerNodePools)),
+			RawContext:    json.RawMessage(fmt.Sprintf(`{"globalaccount_id": "%s", "subaccount_id": "%s", "user_id": "%s"}`, "any-global-account-id", subAccountID, "Test@Test.pl")),
+		}, true)
+		t.Logf("%+v\n", *provisionEndpoint)
+
+		// then
+		require.NoError(t, err)
+	})
+
+	t.Run("Should pass with empty additional worker node pools", func(t *testing.T) {
+		// given
+		memoryStorage := storage.NewMemoryStorage()
+
+		queue := &automock.Queue{}
+		queue.On("Add", mock.AnythingOfType("string"))
+
+		factoryBuilder := &automock.PlanValidator{}
+		factoryBuilder.On("IsPlanSupport", broker.PreviewPlanID).Return(true)
+
+		planDefaults := func(planID string, platformProvider pkg.CloudProvider, provider *pkg.CloudProvider) (*gqlschema.ClusterConfigInput, error) {
+			return &gqlschema.ClusterConfigInput{}, nil
+		}
+		kcBuilder := &kcMock.KcBuilder{}
+		kcBuilder.On("GetServerURL", "").Return("", fmt.Errorf("error"))
+		// #create provisioner endpoint
+		provisionEndpoint := broker.NewProvision(
+			broker.Config{
+				EnablePlans:              []string{"preview"},
+				URL:                      brokerURL,
+				OnlySingleTrialPerGA:     true,
+				EnableKubeconfigURLLabel: true,
+			},
+			gardener.Config{Project: "test", ShootDomain: "example.com", DNSProviders: fixDNSProviders()},
+			memoryStorage.Operations(),
+			memoryStorage.Instances(),
+			memoryStorage.InstancesArchived(),
+			queue,
+			factoryBuilder,
+			broker.PlansConfig{},
+			planDefaults,
+			log,
+			dashboardConfig,
+			kcBuilder,
+			whitelist.Set{},
+			&broker.OneForAllConvergedCloudRegionsProvider{},
+		)
+
+		additionalWorkerNodePools := "[]"
+
+		// when
+		_, err := provisionEndpoint.Provision(fixRequestContext(t, "cf-sa30"), instanceID, domain.ProvisionDetails{
+			ServiceID:     serviceID,
+			PlanID:        broker.PreviewPlanID,
+			RawParameters: json.RawMessage(fmt.Sprintf(`{"name": "%s", "region": "%s","additionalWorkerNodePools": %s }`, clusterName, "eu-central-1", additionalWorkerNodePools)),
+			RawContext:    json.RawMessage(fmt.Sprintf(`{"globalaccount_id": "%s", "subaccount_id": "%s", "user_id": "%s"}`, "any-global-account-id", subAccountID, "Test@Test.pl")),
+		}, true)
+		t.Logf("%+v\n", *provisionEndpoint)
+
+		// then
+		require.NoError(t, err)
+	})
+
+	t.Run("Should fail for autoScalerMin bigger than autoScalerMax", func(t *testing.T) {
+		// given
+		memoryStorage := storage.NewMemoryStorage()
+
+		queue := &automock.Queue{}
+		queue.On("Add", mock.AnythingOfType("string"))
+
+		factoryBuilder := &automock.PlanValidator{}
+		factoryBuilder.On("IsPlanSupport", broker.PreviewPlanID).Return(true)
+
+		planDefaults := func(planID string, platformProvider pkg.CloudProvider, provider *pkg.CloudProvider) (*gqlschema.ClusterConfigInput, error) {
+			return &gqlschema.ClusterConfigInput{}, nil
+		}
+		kcBuilder := &kcMock.KcBuilder{}
+		kcBuilder.On("GetServerURL", "").Return("", fmt.Errorf("error"))
+		// #create provisioner endpoint
+		provisionEndpoint := broker.NewProvision(
+			broker.Config{
+				EnablePlans:              []string{"preview"},
+				URL:                      brokerURL,
+				OnlySingleTrialPerGA:     true,
+				EnableKubeconfigURLLabel: true,
+			},
+			gardener.Config{Project: "test", ShootDomain: "example.com", DNSProviders: fixDNSProviders()},
+			memoryStorage.Operations(),
+			memoryStorage.Instances(),
+			memoryStorage.InstancesArchived(),
+			queue,
+			factoryBuilder,
+			broker.PlansConfig{},
+			planDefaults,
+			log,
+			dashboardConfig,
+			kcBuilder,
+			whitelist.Set{},
+			&broker.OneForAllConvergedCloudRegionsProvider{},
+		)
+
+		additionalWorkerNodePools := `[{"name": "name-1", "machineType": "m6i.large", "autoScalerMin": 20, "autoScalerMax": 3}, {"name": "name-2", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}]`
+
+		// when
+		_, err := provisionEndpoint.Provision(fixRequestContext(t, "cf-sa30"), instanceID, domain.ProvisionDetails{
+			ServiceID:     serviceID,
+			PlanID:        broker.PreviewPlanID,
+			RawParameters: json.RawMessage(fmt.Sprintf(`{"name": "%s", "region": "%s","additionalWorkerNodePools": %s }`, clusterName, "eu-central-1", additionalWorkerNodePools)),
+			RawContext:    json.RawMessage(fmt.Sprintf(`{"globalaccount_id": "%s", "subaccount_id": "%s", "user_id": "%s"}`, "any-global-account-id", subAccountID, "Test@Test.pl")),
+		}, true)
+		t.Logf("%+v\n", *provisionEndpoint)
+
+		// then
+		require.EqualError(t, err, "AutoScalerMax 3 should be larger than AutoScalerMin 20. User provided values min:20, max:3; plan defaults min:0, max:0")
+	})
 }
 
 func TestNetworkingValidation(t *testing.T) {
diff --git a/internal/broker/instance_update.go b/internal/broker/instance_update.go
index 4c68186999..d355ca5d35 100644
--- a/internal/broker/instance_update.go
+++ b/internal/broker/instance_update.go
@@ -263,6 +263,15 @@ func (b *UpdateEndpoint) processUpdateParameters(instance *internal.Instance, de
 		logger.Error(fmt.Sprintf("invalid autoscaler parameters: %s", err.Error()))
 		return domain.UpdateServiceSpec{}, apiresponses.NewFailureResponse(err, http.StatusBadRequest, err.Error())
 	}
+
+	if IsPreviewPlan(details.PlanID) {
+		for _, workerNodePool := range params.AdditionalWorkerNodePools {
+			if err := workerNodePool.AutoScalerParameters.Validate(autoscalerMin, autoscalerMax); err != nil {
+				return domain.UpdateServiceSpec{}, apiresponses.NewFailureResponse(err, http.StatusBadRequest, err.Error())
+			}
+		}
+	}
+
 	err = b.operationStorage.InsertOperation(operation)
 	if err != nil {
 		return domain.UpdateServiceSpec{}, err
@@ -287,6 +296,17 @@ func (b *UpdateEndpoint) processUpdateParameters(instance *internal.Instance, de
 	if params.MachineType != nil && *params.MachineType != "" {
 		instance.Parameters.Parameters.MachineType = params.MachineType
 	}
+
+	if IsPreviewPlan(details.PlanID) {
+		// if the list is empty remove additional worker node pools
+		if params.AdditionalWorkerNodePools != nil {
+			newAdditionalWorkerNodePools := make([]pkg.AdditionalWorkerNodePool, 0, len(params.AdditionalWorkerNodePools))
+			newAdditionalWorkerNodePools = append(newAdditionalWorkerNodePools, params.AdditionalWorkerNodePools...)
+			instance.Parameters.Parameters.AdditionalWorkerNodePools = newAdditionalWorkerNodePools
+			updateStorage = append(updateStorage, "Additional Worker Node Pools")
+		}
+	}
+
 	if len(updateStorage) > 0 {
 		if err := wait.PollUntilContextTimeout(context.Background(), 500*time.Millisecond, 2*time.Second, true, func(ctx context.Context) (bool, error) {
 			instance, err = b.instanceStorage.Update(*instance)
diff --git a/internal/broker/instance_update_test.go b/internal/broker/instance_update_test.go
index 15c8952348..d1c91c7c79 100644
--- a/internal/broker/instance_update_test.go
+++ b/internal/broker/instance_update_test.go
@@ -591,6 +591,66 @@ func TestUpdateEndpoint_UpdateParameters(t *testing.T) {
 		assert.Equal(t, expectedErr.ValidatedStatusCode(nil), apierr.ValidatedStatusCode(nil))
 		assert.Equal(t, expectedErr.LoggerAction(), apierr.LoggerAction())
 	})
+
+	t.Run("Should pass with additional worker node pools", func(t *testing.T) {
+		// given
+		additionalWorkerNodePools := `[{"name": "name-1", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}, {"name": "name-2", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}]`
+
+		// when
+		_, err := svc.Update(context.Background(), instanceID, domain.UpdateDetails{
+			ServiceID:       "",
+			PlanID:          PreviewPlanID,
+			RawParameters:   json.RawMessage("{\"additionalWorkerNodePools\":" + additionalWorkerNodePools + "}"),
+			PreviousValues:  domain.PreviousValues{},
+			RawContext:      json.RawMessage("{\"globalaccount_id\":\"globalaccount_id_1\", \"active\":true}"),
+			MaintenanceInfo: nil,
+		}, true)
+
+		// then
+		require.NoError(t, err)
+	})
+
+	t.Run("Should pass with empty additional worker node pools", func(t *testing.T) {
+		// given
+		additionalWorkerNodePools := "[]"
+
+		// when
+		_, err := svc.Update(context.Background(), instanceID, domain.UpdateDetails{
+			ServiceID:       "",
+			PlanID:          PreviewPlanID,
+			RawParameters:   json.RawMessage("{\"additionalWorkerNodePools\":" + additionalWorkerNodePools + "}"),
+			PreviousValues:  domain.PreviousValues{},
+			RawContext:      json.RawMessage("{\"globalaccount_id\":\"globalaccount_id_1\", \"active\":true}"),
+			MaintenanceInfo: nil,
+		}, true)
+
+		// then
+		require.NoError(t, err)
+	})
+
+	t.Run("Should fail for autoScalerMin bigger than autoScalerMax", func(t *testing.T) {
+		// given
+		additionalWorkerNodePools := `[{"name": "name-1", "machineType": "m6i.large", "autoScalerMin": 20, "autoScalerMax": 3}, {"name": "name-2", "machineType": "m6i.large", "autoScalerMin": 3, "autoScalerMax": 20}]`
+		errMsg := fmt.Errorf("AutoScalerMax 3 should be larger than AutoScalerMin 20. User provided values min:20, max:3; plan defaults min:0, max:0")
+		expectedErr := apiresponses.NewFailureResponse(errMsg, http.StatusBadRequest, errMsg.Error())
+
+		// when
+		_, err := svc.Update(context.Background(), instanceID, domain.UpdateDetails{
+			ServiceID:       "",
+			PlanID:          PreviewPlanID,
+			RawParameters:   json.RawMessage("{\"additionalWorkerNodePools\":" + additionalWorkerNodePools + "}"),
+			PreviousValues:  domain.PreviousValues{},
+			RawContext:      json.RawMessage("{\"globalaccount_id\":\"globalaccount_id_1\", \"active\":true}"),
+			MaintenanceInfo: nil,
+		}, true)
+
+		// then
+		require.Error(t, err)
+		assert.IsType(t, &apiresponses.FailureResponse{}, err)
+		apierr := err.(*apiresponses.FailureResponse)
+		assert.Equal(t, expectedErr.ValidatedStatusCode(nil), apierr.ValidatedStatusCode(nil))
+		assert.Equal(t, expectedErr.LoggerAction(), apierr.LoggerAction())
+	})
 }
 
 func TestUpdateEndpoint_UpdateWithEnabledDashboard(t *testing.T) {
diff --git a/internal/broker/plans.go b/internal/broker/plans.go
index e8b6b193ea..456effd61d 100644
--- a/internal/broker/plans.go
+++ b/internal/broker/plans.go
@@ -368,6 +368,7 @@ func SapConvergedCloudSchema(machineTypesDisplay, regionsDisplay map[string]stri
 func PreviewSchema(machineTypesDisplay, regionsDisplay map[string]string, machineTypes []string, additionalParams, update bool, euAccessRestricted bool) *map[string]interface{} {
 	properties := NewProvisioningProperties(machineTypesDisplay, regionsDisplay, machineTypes, AWSRegions(euAccessRestricted), update)
 	properties.Networking = NewNetworkingSchema()
+	properties.AdditionalWorkerNodePools = NewAdditionalWorkerNodePoolsSchema(machineTypesDisplay, machineTypes)
 	return createSchemaWithProperties(properties, additionalParams, update, requiredSchemaProperties(), false, false)
 }
 
diff --git a/internal/broker/plans_schema.go b/internal/broker/plans_schema.go
index 08b49a66d9..1f0b5b7515 100644
--- a/internal/broker/plans_schema.go
+++ b/internal/broker/plans_schema.go
@@ -33,12 +33,13 @@ type ProvisioningProperties struct {
 }
 
 type UpdateProperties struct {
-	Kubeconfig     *Type     `json:"kubeconfig,omitempty"`
-	AutoScalerMin  *Type     `json:"autoScalerMin,omitempty"`
-	AutoScalerMax  *Type     `json:"autoScalerMax,omitempty"`
-	OIDC           *OIDCType `json:"oidc,omitempty"`
-	Administrators *Type     `json:"administrators,omitempty"`
-	MachineType    *Type     `json:"machineType,omitempty"`
+	Kubeconfig                *Type                          `json:"kubeconfig,omitempty"`
+	AutoScalerMin             *Type                          `json:"autoScalerMin,omitempty"`
+	AutoScalerMax             *Type                          `json:"autoScalerMax,omitempty"`
+	OIDC                      *OIDCType                      `json:"oidc,omitempty"`
+	Administrators            *Type                          `json:"administrators,omitempty"`
+	MachineType               *Type                          `json:"machineType,omitempty"`
+	AdditionalWorkerNodePools *AdditionalWorkerNodePoolsType `json:"additionalWorkerNodePools,omitempty"`
 }
 
 func (up *UpdateProperties) IncludeAdditional() {
@@ -147,6 +148,25 @@ type ModulesCustomListItemsProperties struct {
 	CustomResourcePolicy Type `json:"customResourcePolicy,omitempty"`
 }
 
+type AdditionalWorkerNodePoolsType struct {
+	Type
+	Items AdditionalWorkerNodePoolsItems `json:"items,omitempty"`
+}
+
+type AdditionalWorkerNodePoolsItems struct {
+	Type
+	ControlsOrder []string                                 `json:"_controlsOrder,omitempty"`
+	Required      []string                                 `json:"required"`
+	Properties    AdditionalWorkerNodePoolsItemsProperties `json:"properties,omitempty"`
+}
+
+type AdditionalWorkerNodePoolsItemsProperties struct {
+	Name          Type `json:"name,omitempty"`
+	AutoScalerMin Type `json:"autoScalerMin,omitempty"`
+	AutoScalerMax Type `json:"autoScalerMax,omitempty"`
+	MachineType   Type `json:"machineType,omitempty"`
+}
+
 func NewModulesSchema() *Modules {
 	return &Modules{
 		Type: Type{
@@ -298,6 +318,7 @@ func NewProvisioningProperties(machineTypesDisplay, regionsDisplay map[string]st
 				Type:            "string",
 				Enum:            ToInterfaceSlice(machineTypes),
 				EnumDisplayName: machineTypesDisplay,
+				Description:     "Specifies the type of the machine.",
 			},
 		},
 		Name: NameProperty(),
@@ -386,7 +407,7 @@ func unmarshalOrPanic(from, to interface{}) interface{} {
 }
 
 func DefaultControlsOrder() []string {
-	return []string{"name", "kubeconfig", "shootName", "shootDomain", "region", "shootAndSeedSameRegion", "machineType", "autoScalerMin", "autoScalerMax", "zonesCount", "modules", "networking", "oidc", "administrators"}
+	return []string{"name", "kubeconfig", "shootName", "shootDomain", "region", "shootAndSeedSameRegion", "machineType", "autoScalerMin", "autoScalerMax", "additionalWorkerNodePools", "zonesCount", "modules", "networking", "oidc", "administrators"}
 }
 
 func ToInterfaceSlice(input []string) []interface{} {
@@ -407,3 +428,44 @@ func AdministratorsProperty() *Type {
 		},
 	}
 }
+
+func NewAdditionalWorkerNodePoolsSchema(machineTypesDisplay map[string]string, machineTypes []string) *AdditionalWorkerNodePoolsType {
+	return &AdditionalWorkerNodePoolsType{
+		Type: Type{
+			Type:        "array",
+			UniqueItems: true,
+			Description: "Specifies the list of additional worker node pools."},
+		Items: AdditionalWorkerNodePoolsItems{
+			ControlsOrder: []string{"name", "machineType", "autoScalerMin", "autoScalerMax"},
+			Required:      []string{"name", "machineType", "autoScalerMin", "autoScalerMax"},
+			Type: Type{
+				Type: "object",
+			},
+			Properties: AdditionalWorkerNodePoolsItemsProperties{
+				Name: Type{
+					Type:        "string",
+					MinLength:   1,
+					Description: "Specifies the unique name of the additional worker node pool.",
+				},
+				MachineType: Type{
+					Type:            "string",
+					MinLength:       1,
+					Enum:            ToInterfaceSlice(machineTypes),
+					EnumDisplayName: machineTypesDisplay,
+					Description:     "Specifies the type of the machine.",
+				},
+				AutoScalerMin: Type{
+					Type:        "integer",
+					Minimum:     0,
+					Description: "Specifies the minimum number of virtual machines to create.",
+				},
+				AutoScalerMax: Type{
+					Type:        "integer",
+					Minimum:     0,
+					Maximum:     300,
+					Description: "Specifies the maximum number of virtual machines to create.",
+				},
+			},
+		},
+	}
+}
diff --git a/internal/broker/testdata/aws/aws-schema-additional-params-eu.json b/internal/broker/testdata/aws/aws-schema-additional-params-eu.json
index 8e84b8c3b0..83e211ba85 100644
--- a/internal/broker/testdata/aws/aws-schema-additional-params-eu.json
+++ b/internal/broker/testdata/aws/aws-schema-additional-params-eu.json
@@ -50,6 +50,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/aws/aws-schema-additional-params.json b/internal/broker/testdata/aws/aws-schema-additional-params.json
index e1e4770426..485a1e1c7a 100644
--- a/internal/broker/testdata/aws/aws-schema-additional-params.json
+++ b/internal/broker/testdata/aws/aws-schema-additional-params.json
@@ -50,6 +50,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/aws/aws-schema-eu.json b/internal/broker/testdata/aws/aws-schema-eu.json
index e496d7dd19..d6f25691ff 100644
--- a/internal/broker/testdata/aws/aws-schema-eu.json
+++ b/internal/broker/testdata/aws/aws-schema-eu.json
@@ -39,6 +39,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/aws/aws-schema.json b/internal/broker/testdata/aws/aws-schema.json
index 8a013c43af..0e21074473 100644
--- a/internal/broker/testdata/aws/aws-schema.json
+++ b/internal/broker/testdata/aws/aws-schema.json
@@ -39,6 +39,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/aws/update-aws-schema-additional-params.json b/internal/broker/testdata/aws/update-aws-schema-additional-params.json
index b91dddadf8..e31f990449 100644
--- a/internal/broker/testdata/aws/update-aws-schema-additional-params.json
+++ b/internal/broker/testdata/aws/update-aws-schema-additional-params.json
@@ -43,6 +43,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/aws/update-aws-schema.json b/internal/broker/testdata/aws/update-aws-schema.json
index 397ed8c894..2fb10c71ae 100644
--- a/internal/broker/testdata/aws/update-aws-schema.json
+++ b/internal/broker/testdata/aws/update-aws-schema.json
@@ -33,6 +33,7 @@
         "m6i.8xlarge":  "m6i.8xlarge (32vCPU, 128GB RAM)",
         "m6i.12xlarge": "m6i.12xlarge (48vCPU, 192GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "m6i.large",
         "m6i.xlarge",
diff --git a/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu-reduced.json b/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu-reduced.json
index 967b8fc877..d69efcb2dc 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu-reduced.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu-reduced.json
@@ -39,6 +39,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu.json b/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu.json
index 62e646fd84..2627cdcb44 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-additional-params-eu.json
@@ -41,6 +41,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-lite-schema-additional-params-reduced.json b/internal/broker/testdata/azure/azure-lite-schema-additional-params-reduced.json
index b212d9aae6..9d06b175b3 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-additional-params-reduced.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-additional-params-reduced.json
@@ -39,6 +39,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/azure-lite-schema-additional-params.json b/internal/broker/testdata/azure/azure-lite-schema-additional-params.json
index 818e6599e6..35193fb802 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-additional-params.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-additional-params.json
@@ -41,6 +41,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-lite-schema-eu-reduced.json b/internal/broker/testdata/azure/azure-lite-schema-eu-reduced.json
index 171ec2091a..52a573fdea 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-eu-reduced.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-eu-reduced.json
@@ -29,6 +29,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/azure-lite-schema-eu.json b/internal/broker/testdata/azure/azure-lite-schema-eu.json
index 193203c83a..d8fa786a13 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-eu.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-eu.json
@@ -30,6 +30,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-lite-schema-reduced.json b/internal/broker/testdata/azure/azure-lite-schema-reduced.json
index 2a568ca675..39ee6addc9 100644
--- a/internal/broker/testdata/azure/azure-lite-schema-reduced.json
+++ b/internal/broker/testdata/azure/azure-lite-schema-reduced.json
@@ -29,6 +29,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/azure-lite-schema.json b/internal/broker/testdata/azure/azure-lite-schema.json
index bd6867c9e2..d758312b09 100644
--- a/internal/broker/testdata/azure/azure-lite-schema.json
+++ b/internal/broker/testdata/azure/azure-lite-schema.json
@@ -30,6 +30,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-schema-additional-params-eu.json b/internal/broker/testdata/azure/azure-schema-additional-params-eu.json
index eeece583a1..8e2a97548d 100644
--- a/internal/broker/testdata/azure/azure-schema-additional-params-eu.json
+++ b/internal/broker/testdata/azure/azure-schema-additional-params-eu.json
@@ -51,6 +51,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-schema-additional-params.json b/internal/broker/testdata/azure/azure-schema-additional-params.json
index 260d559ae9..bc1a02fe41 100644
--- a/internal/broker/testdata/azure/azure-schema-additional-params.json
+++ b/internal/broker/testdata/azure/azure-schema-additional-params.json
@@ -51,6 +51,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-schema-eu.json b/internal/broker/testdata/azure/azure-schema-eu.json
index 858ece277b..0909320fc6 100644
--- a/internal/broker/testdata/azure/azure-schema-eu.json
+++ b/internal/broker/testdata/azure/azure-schema-eu.json
@@ -40,6 +40,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/azure-schema.json b/internal/broker/testdata/azure/azure-schema.json
index 69653f3b4a..3571760323 100644
--- a/internal/broker/testdata/azure/azure-schema.json
+++ b/internal/broker/testdata/azure/azure-schema.json
@@ -40,6 +40,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/update-azure-lite-schema-additional-params-reduced.json b/internal/broker/testdata/azure/update-azure-lite-schema-additional-params-reduced.json
index 0ad6206f7f..d011421031 100644
--- a/internal/broker/testdata/azure/update-azure-lite-schema-additional-params-reduced.json
+++ b/internal/broker/testdata/azure/update-azure-lite-schema-additional-params-reduced.json
@@ -33,6 +33,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/update-azure-lite-schema-additional-params.json b/internal/broker/testdata/azure/update-azure-lite-schema-additional-params.json
index 6bd91fcf39..0d19b80153 100644
--- a/internal/broker/testdata/azure/update-azure-lite-schema-additional-params.json
+++ b/internal/broker/testdata/azure/update-azure-lite-schema-additional-params.json
@@ -34,6 +34,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/update-azure-lite-schema-reduced.json b/internal/broker/testdata/azure/update-azure-lite-schema-reduced.json
index 7d3af88f58..c07f62c940 100644
--- a/internal/broker/testdata/azure/update-azure-lite-schema-reduced.json
+++ b/internal/broker/testdata/azure/update-azure-lite-schema-reduced.json
@@ -23,6 +23,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D4s_v5",
         "Standard_D4_v3"
diff --git a/internal/broker/testdata/azure/update-azure-lite-schema.json b/internal/broker/testdata/azure/update-azure-lite-schema.json
index 608624e17c..4051a040bc 100644
--- a/internal/broker/testdata/azure/update-azure-lite-schema.json
+++ b/internal/broker/testdata/azure/update-azure-lite-schema.json
@@ -24,6 +24,7 @@
         "Standard_D4s_v5":"Standard_D4s_v5 (4vCPU, 16GB RAM)",
         "Standard_D4_v3":"Standard_D4_v3 (4vCPU, 16GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum":[
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/update-azure-schema-additional-params.json b/internal/broker/testdata/azure/update-azure-schema-additional-params.json
index 13b500f8e7..d5710df1ab 100644
--- a/internal/broker/testdata/azure/update-azure-schema-additional-params.json
+++ b/internal/broker/testdata/azure/update-azure-schema-additional-params.json
@@ -44,6 +44,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/azure/update-azure-schema.json b/internal/broker/testdata/azure/update-azure-schema.json
index 6d9207be2a..afcc688e56 100644
--- a/internal/broker/testdata/azure/update-azure-schema.json
+++ b/internal/broker/testdata/azure/update-azure-schema.json
@@ -34,6 +34,7 @@
         "Standard_D48_v3":  "Standard_D48_v3 (48vCPU, 192GB RAM)",
         "Standard_D64_v3":  "Standard_D64_v3 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "Standard_D2s_v5",
         "Standard_D4s_v5",
diff --git a/internal/broker/testdata/gcp/gcp-schema-additional-params-assured-workloads.json b/internal/broker/testdata/gcp/gcp-schema-additional-params-assured-workloads.json
index b551d81e67..e1d5160412 100644
--- a/internal/broker/testdata/gcp/gcp-schema-additional-params-assured-workloads.json
+++ b/internal/broker/testdata/gcp/gcp-schema-additional-params-assured-workloads.json
@@ -44,6 +44,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/gcp/gcp-schema-additional-params.json b/internal/broker/testdata/gcp/gcp-schema-additional-params.json
index 9040c626b7..3fed50ee21 100644
--- a/internal/broker/testdata/gcp/gcp-schema-additional-params.json
+++ b/internal/broker/testdata/gcp/gcp-schema-additional-params.json
@@ -44,6 +44,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/gcp/gcp-schema-assured-workloads.json b/internal/broker/testdata/gcp/gcp-schema-assured-workloads.json
index 13b2b7c284..6d31f5e66e 100644
--- a/internal/broker/testdata/gcp/gcp-schema-assured-workloads.json
+++ b/internal/broker/testdata/gcp/gcp-schema-assured-workloads.json
@@ -33,6 +33,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/gcp/gcp-schema.json b/internal/broker/testdata/gcp/gcp-schema.json
index c62e0f1cde..5e059baf33 100644
--- a/internal/broker/testdata/gcp/gcp-schema.json
+++ b/internal/broker/testdata/gcp/gcp-schema.json
@@ -33,6 +33,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/gcp/update-gcp-schema-additional-params.json b/internal/broker/testdata/gcp/update-gcp-schema-additional-params.json
index c405a0dcdf..31c0e98a95 100644
--- a/internal/broker/testdata/gcp/update-gcp-schema-additional-params.json
+++ b/internal/broker/testdata/gcp/update-gcp-schema-additional-params.json
@@ -37,6 +37,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/gcp/update-gcp-schema.json b/internal/broker/testdata/gcp/update-gcp-schema.json
index 71eab32cdf..e0c1c39a7d 100644
--- a/internal/broker/testdata/gcp/update-gcp-schema.json
+++ b/internal/broker/testdata/gcp/update-gcp-schema.json
@@ -27,6 +27,7 @@
         "n2-standard-32": "n2-standard-32 (32vCPU, 128GB RAM)",
         "n2-standard-48": "n2-standard-48 (48vCPU, 192B RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "n2-standard-2",
         "n2-standard-4",
diff --git a/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema-additional-params.json b/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema-additional-params.json
index ebdbd88161..d226114f2c 100644
--- a/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema-additional-params.json
+++ b/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema-additional-params.json
@@ -46,6 +46,7 @@
         "g_c32_m128": "g_c32_m128 (32vCPU, 128GB RAM)",
         "g_c64_m256": "g_c64_m256 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "g_c2_m8",
         "g_c4_m16",
diff --git a/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema.json b/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema.json
index a1cd7c8062..921a043590 100644
--- a/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema.json
+++ b/internal/broker/testdata/sap-converged-cloud/sap-converged-cloud-schema.json
@@ -35,6 +35,7 @@
         "g_c32_m128": "g_c32_m128 (32vCPU, 128GB RAM)",
         "g_c64_m256": "g_c64_m256 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "g_c2_m8",
         "g_c4_m16",
diff --git a/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema-additional-params.json b/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema-additional-params.json
index 81ddc80553..5c4fa5cb49 100644
--- a/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema-additional-params.json
+++ b/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema-additional-params.json
@@ -39,6 +39,7 @@
         "g_c32_m128": "g_c32_m128 (32vCPU, 128GB RAM)",
         "g_c64_m256": "g_c64_m256 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "g_c2_m8",
         "g_c4_m16",
diff --git a/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema.json b/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema.json
index 368109d4cc..a89ebb63f8 100644
--- a/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema.json
+++ b/internal/broker/testdata/sap-converged-cloud/update-sap-converged-cloud-schema.json
@@ -29,6 +29,7 @@
         "g_c32_m128": "g_c32_m128 (32vCPU, 128GB RAM)",
         "g_c64_m256": "g_c64_m256 (64vCPU, 256GB RAM)"
       },
+      "description": "Specifies the type of the machine.",
       "enum": [
         "g_c2_m8",
         "g_c4_m16",
diff --git a/internal/dto.go b/internal/dto.go
index 2e14ac4f55..3d3d48dfbe 100644
--- a/internal/dto.go
+++ b/internal/dto.go
@@ -52,9 +52,10 @@ func (p ProvisioningParameters) IsEqual(input ProvisioningParameters) bool {
 type UpdatingParametersDTO struct {
 	pkg.AutoScalerParameters `json:",inline"`
 
-	OIDC                  *pkg.OIDCConfigDTO `json:"oidc,omitempty"`
-	RuntimeAdministrators []string           `json:"administrators,omitempty"`
-	MachineType           *string            `json:"machineType,omitempty"`
+	OIDC                      *pkg.OIDCConfigDTO             `json:"oidc,omitempty"`
+	RuntimeAdministrators     []string                       `json:"administrators,omitempty"`
+	MachineType               *string                        `json:"machineType,omitempty"`
+	AdditionalWorkerNodePools []pkg.AdditionalWorkerNodePool `json:"additionalWorkerNodePools"`
 }
 
 func (u UpdatingParametersDTO) UpdateAutoScaler(p *pkg.ProvisioningParametersDTO) bool {