diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/accounts.go b/services/preview/netapp/mgmt/2017-08-15/netapp/accounts.go
index 0cd8c9306b97..5125d8c8e369 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/accounts.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/accounts.go
@@ -36,7 +36,8 @@ func NewAccountsClient(subscriptionID string) AccountsClient {
 	return NewAccountsClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewAccountsClientWithBaseURI creates an instance of the AccountsClient client.
+// NewAccountsClientWithBaseURI creates an instance of the AccountsClient client using a custom endpoint.  Use this
+// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewAccountsClientWithBaseURI(baseURI string, subscriptionID string) AccountsClient {
 	return AccountsClient{NewWithBaseURI(baseURI, subscriptionID)}
 }
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/client.go b/services/preview/netapp/mgmt/2017-08-15/netapp/client.go
index f8f4585cb7d3..dd6c8708c75b 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/client.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/client.go
@@ -41,7 +41,8 @@ func New(subscriptionID string) BaseClient {
 	return NewWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewWithBaseURI creates an instance of the BaseClient client.
+// NewWithBaseURI creates an instance of the BaseClient client using a custom endpoint.  Use this when interacting with
+// an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewWithBaseURI(baseURI string, subscriptionID string) BaseClient {
 	return BaseClient{
 		Client:         autorest.NewClientWithUserAgent(UserAgent()),
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/mounttargets.go b/services/preview/netapp/mgmt/2017-08-15/netapp/mounttargets.go
index 98799ffb601c..6ba4a9f1e3bf 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/mounttargets.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/mounttargets.go
@@ -36,7 +36,8 @@ func NewMountTargetsClient(subscriptionID string) MountTargetsClient {
 	return NewMountTargetsClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewMountTargetsClientWithBaseURI creates an instance of the MountTargetsClient client.
+// NewMountTargetsClientWithBaseURI creates an instance of the MountTargetsClient client using a custom endpoint.  Use
+// this when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewMountTargetsClientWithBaseURI(baseURI string, subscriptionID string) MountTargetsClient {
 	return MountTargetsClient{NewWithBaseURI(baseURI, subscriptionID)}
 }
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/operations.go b/services/preview/netapp/mgmt/2017-08-15/netapp/operations.go
index 942d8774f4dd..6ba62976aad2 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/operations.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/operations.go
@@ -35,7 +35,8 @@ func NewOperationsClient(subscriptionID string) OperationsClient {
 	return NewOperationsClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewOperationsClientWithBaseURI creates an instance of the OperationsClient client.
+// NewOperationsClientWithBaseURI creates an instance of the OperationsClient client using a custom endpoint.  Use this
+// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewOperationsClientWithBaseURI(baseURI string, subscriptionID string) OperationsClient {
 	return OperationsClient{NewWithBaseURI(baseURI, subscriptionID)}
 }
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/pools.go b/services/preview/netapp/mgmt/2017-08-15/netapp/pools.go
index 952b2983f795..6e6a1746851f 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/pools.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/pools.go
@@ -36,7 +36,8 @@ func NewPoolsClient(subscriptionID string) PoolsClient {
 	return NewPoolsClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewPoolsClientWithBaseURI creates an instance of the PoolsClient client.
+// NewPoolsClientWithBaseURI creates an instance of the PoolsClient client using a custom endpoint.  Use this when
+// interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewPoolsClientWithBaseURI(baseURI string, subscriptionID string) PoolsClient {
 	return PoolsClient{NewWithBaseURI(baseURI, subscriptionID)}
 }
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/snapshots.go b/services/preview/netapp/mgmt/2017-08-15/netapp/snapshots.go
index f56cf55d231e..ba7f61e10523 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/snapshots.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/snapshots.go
@@ -36,7 +36,8 @@ func NewSnapshotsClient(subscriptionID string) SnapshotsClient {
 	return NewSnapshotsClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewSnapshotsClientWithBaseURI creates an instance of the SnapshotsClient client.
+// NewSnapshotsClientWithBaseURI creates an instance of the SnapshotsClient client using a custom endpoint.  Use this
+// when interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewSnapshotsClientWithBaseURI(baseURI string, subscriptionID string) SnapshotsClient {
 	return SnapshotsClient{NewWithBaseURI(baseURI, subscriptionID)}
 }
diff --git a/services/preview/netapp/mgmt/2017-08-15/netapp/volumes.go b/services/preview/netapp/mgmt/2017-08-15/netapp/volumes.go
index bf7da3deecd4..0ae28e9e255e 100644
--- a/services/preview/netapp/mgmt/2017-08-15/netapp/volumes.go
+++ b/services/preview/netapp/mgmt/2017-08-15/netapp/volumes.go
@@ -36,7 +36,8 @@ func NewVolumesClient(subscriptionID string) VolumesClient {
 	return NewVolumesClientWithBaseURI(DefaultBaseURI, subscriptionID)
 }
 
-// NewVolumesClientWithBaseURI creates an instance of the VolumesClient client.
+// NewVolumesClientWithBaseURI creates an instance of the VolumesClient client using a custom endpoint.  Use this when
+// interacting with an Azure cloud that uses a non-standard base URI (sovereign clouds, Azure stack).
 func NewVolumesClientWithBaseURI(baseURI string, subscriptionID string) VolumesClient {
 	return VolumesClient{NewWithBaseURI(baseURI, subscriptionID)}
 }