diff --git a/msgraph/models.go b/msgraph/models.go
index 3de02e43..eea61d13 100644
--- a/msgraph/models.go
+++ b/msgraph/models.go
@@ -883,6 +883,7 @@ type Group struct {
 	HasMembersWithLicenseErrors   *bool                               `json:"hasMembersWithLicenseErrors,omitempty"`
 	HideFromAddressLists          *bool                               `json:"hideFromAddressLists,omitempty"`
 	HideFromOutlookClients        *bool                               `json:"hideFromOutlookClients,omitempty"`
+	IsAssignableToRole            *bool                               `json:"isAssignableToRole,omitempty"`
 	IsSubscribedByMail            *bool                               `json:"isSubscribedByMail,omitempty"`
 	LicenseProcessingState        *string                             `json:"licenseProcessingState,omitempty"`
 	Mail                          *string                             `json:"mail,omitempty"`
@@ -908,7 +909,7 @@ type Group struct {
 	Theme                         *GroupTheme                         `json:"theme,omitempty"`
 	UnseenCount                   *int                                `json:"unseenCount,omitempty"`
 	Visibility                    *GroupVisibility                    `json:"visibility,omitempty"`
-	IsAssignableToRole            *bool                               `json:"isAssignableToRole,omitempty"`
+	WritebackConfiguration        *GroupWritebackConfiguration        `json:"writebackConfiguration,omitempty"`
 }
 
 func (g Group) MarshalJSON() ([]byte, error) {
@@ -989,6 +990,11 @@ type GroupOnPremisesProvisioningError struct {
 	Value                *string   `json:"value,omitempty"`
 }
 
+type GroupWritebackConfiguration struct {
+	IsEnabled           *bool                `json:"isEnabled"`
+	OnPremisesGroupType *OnPremisesGroupType `json:"onPremisesGroupType"`
+}
+
 type Identity struct {
 	DisplayName *string `json:"displayName,omitempty"`
 	Id          *string `json:"id,omitempty"`
diff --git a/msgraph/valuetypes.go b/msgraph/valuetypes.go
index 17b7489b..4364ba53 100644
--- a/msgraph/valuetypes.go
+++ b/msgraph/valuetypes.go
@@ -448,6 +448,14 @@ const (
 	KeyCredentialUsageVerify KeyCredentialUsage = "Verify"
 )
 
+type OnPremisesGroupType = string
+
+const (
+	UniversalDistributionGroup        OnPremisesGroupType = "universalDistributionGroup"
+	UniversalMailEnabledSecurityGroup OnPremisesGroupType = "universalMailEnabledSecurityGroup"
+	UniversalSecurityGroup            OnPremisesGroupType = "universalSecurityGroup"
+)
+
 type Members []DirectoryObject
 
 func (o Members) MarshalJSON() ([]byte, error) {