diff --git a/CHANGELOG.md b/CHANGELOG.md
index f096230999..7b1be5bf1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
   - /types/trimmed
   - /deliveryservice_user/:dsId/:userId
   - /user/current/jobs
+  - /cdns/usage/overview
 
 ## [4.0.0] - 2019-12-16
 ### Added
diff --git a/docs/source/api/cdns_usage_overview.rst b/docs/source/api/cdns_usage_overview.rst
index 475b7d81af..6c131c0d45 100644
--- a/docs/source/api/cdns_usage_overview.rst
+++ b/docs/source/api/cdns_usage_overview.rst
@@ -21,6 +21,9 @@
 
 .. versionadded:: 1.2
 
+.. deprecated:: ATCv4
+	This endpoint and its functionality is deprecated, and will be removed in the future.
+
 ``GET``
 =======
 Retrieves the high-level CDN usage metrics from Traffic Stats
@@ -46,10 +49,18 @@ Response Structure
 .. code-block:: json
 	:caption: Response Example
 
-	{ "response": {
-		"currentGbps": 975.920621333333,
-		"source": "TrafficStats",
-		"tps": 0,
-		"version": "1.2",
-		"maxGbps": 12085
-	}}
+	{
+		"alerts": [
+			{
+				"level": "warning",
+				"text": "This endpoint and its functionality is deprecated, and will be removed in the future"
+			}
+		],
+		"response": {
+			"currentGbps": 975.920621333333,
+			"source": "TrafficStats",
+			"tps": 0,
+			"version": "1.2",
+			"maxGbps": 12085
+		}
+	}
diff --git a/traffic_ops/app/lib/Extensions/TrafficStats/API/CdnStats.pm b/traffic_ops/app/lib/Extensions/TrafficStats/API/CdnStats.pm
index 023e673957..15bcb50157 100644
--- a/traffic_ops/app/lib/Extensions/TrafficStats/API/CdnStats.pm
+++ b/traffic_ops/app/lib/Extensions/TrafficStats/API/CdnStats.pm
@@ -52,10 +52,10 @@ sub get_usage_overview {
 
 	my ( $rc, $result ) = $cstats->get_usage_overview();
 	if ( $rc == SUCCESS ) {
-		return $self->success($result);
+		return $self->deprecation_with_no_alternative(200, $result);
 	}
 	else {
-		return $self->alert($result);
+		return $self->deprecation_with_no_alternative(400, $result);
 	}
 }