diff --git a/fastly/observability_custom_dashboard.go b/fastly/observability_custom_dashboard.go
index bdeefae17..84a8008e0 100644
--- a/fastly/observability_custom_dashboard.go
+++ b/fastly/observability_custom_dashboard.go
@@ -40,7 +40,7 @@ type ObservabilityCustomDashboard struct {
 // DashboardItem describes an item (or "widget") of a dashboard
 type DashboardItem struct {
 	// DataSource describes the source of the metrics to be displayed (required)
-	DataSource DataSource `json:"data_source"`
+	DataSource DashboardDataSource `json:"data_source"`
 	// ID is a unique identifier for the DashboardItem (read-only)
 	ID string `json:"id,omitempty"`
 	// Span is the number of columns (1-12) for the DashboardItem to span (default: 4)
@@ -50,10 +50,10 @@ type DashboardItem struct {
 	// Title is a human-readable title to display (optional)
 	Title string `json:"title"`
 	// Visualization describes the way the DashboardItem should display data (required)
-	Visualization Visualization `json:"visualization"`
+	Visualization DashboardVisualization `json:"visualization"`
 }
 
-type SourceType string
+type DashboardSourceType string
 
 const (
 	SourceTypeStatsEdge   = "stats.edge"
@@ -61,27 +61,25 @@ const (
 	SourceTypeStatsOrigin = "stats.origin"
 )
 
-// DataSource describes the data to display in a DashboardItem
-type DataSource struct {
+// DashboardDataSource describes the data to display in a DashboardItem
+type DashboardDataSource struct {
 	// Config describes configuration options for the selected data source (required)
-	Config SourceConfig `json:"config"`
+	Config DashboardSourceConfig `json:"config"`
 	// Type is the source of the data to display (required)
-	Type SourceType `json:"type"`
+	Type DashboardSourceType `json:"type"`
 }
 
-type Metric string
-
-type SourceConfig struct {
+type DashboardSourceConfig struct {
 	// Metrics is the list metrics to visualize (required)
 	// Valid options are defined by the selected SourceType. See https://www.fastly.com/documentation/reference/api/observability/custom-dashboards/#data-source
-	Metrics []Metric `json:"metrics"`
+	Metrics []string `json:"metrics"`
 }
 
 type VisualizationType string
 
 const VisualizationTypeChart VisualizationType = "chart"
 
-type Visualization struct {
+type DashboardVisualization struct {
 	// Config describes configuration options for the given visualization (required)
 	Config VisualizationConfig `json:"config"`
 	// Type is type of visualization to display. Currently only "chart" is supported (required)
diff --git a/fastly/observability_custom_dashboard_test.go b/fastly/observability_custom_dashboard_test.go
index 5c6dc4168..707c39eaf 100644
--- a/fastly/observability_custom_dashboard_test.go
+++ b/fastly/observability_custom_dashboard_test.go
@@ -14,16 +14,16 @@ func TestClient_ObservabilityCustomDashboards(t *testing.T) {
 		Description: ToPointer("My dashboard is super cool."),
 		Name:        "My Cool Dashboard",
 		Items: []DashboardItem{{
-			DataSource: DataSource{
-				Config: SourceConfig{
-					Metrics: []Metric{"requests"},
+			DataSource: DashboardDataSource{
+				Config: DashboardSourceConfig{
+					Metrics: []string{"requests"},
 				},
 				Type: SourceTypeStatsEdge,
 			},
 			Span:     4,
 			Subtitle: "This is a subtitle",
 			Title:    "A Dashboard Item",
-			Visualization: Visualization{
+			Visualization: DashboardVisualization{
 				Config: VisualizationConfig{PlotType: PlotTypeLine},
 				Type:   VisualizationTypeChart,
 			},
@@ -90,21 +90,21 @@ func TestClient_ObservabilityCustomDashboards(t *testing.T) {
 	// Update
 	var ucd *ObservabilityCustomDashboard
 	items := ocd.Items
-	items[0].DataSource.Config.Metrics = []Metric{"edge_hit_requests"}
+	items[0].DataSource.Config.Metrics = []string{"edge_hit_requests"}
 	items[0].Visualization.Config.PlotType = PlotTypeSingleMetric
 	items[0].Title = "An Updated Dashboard Item"
 
 	items = append(items, DashboardItem{
-		DataSource: DataSource{
-			Config: SourceConfig{
-				Metrics: []Metric{"requests"},
+		DataSource: DashboardDataSource{
+			Config: DashboardSourceConfig{
+				Metrics: []string{"requests"},
 			},
 			Type: SourceTypeStatsEdge,
 		},
 		Span:     4,
 		Subtitle: "This is a subtitle",
 		Title:    "A New Dashboard Item",
-		Visualization: Visualization{
+		Visualization: DashboardVisualization{
 			Config: VisualizationConfig{PlotType: PlotTypeLine},
 			Type:   VisualizationTypeChart,
 		},