diff --git a/cloud/azure/app-services/README.md b/cloud/azure/app-services/README.md
index b439492..fac9581 100644
--- a/cloud/azure/app-services/README.md
+++ b/cloud/azure/app-services/README.md
@@ -20,7 +20,7 @@ Creates a DataDog monitors with the following checks :
 * Response time
 * Memory usage count
 * HTTP 5xx requests
-* HTTP 404 requests
+* HTTP 4xx requests
 * HTTP 2xx requests
 
 Inputs
@@ -34,8 +34,8 @@ Inputs
 | filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
 | http_2xx_requests_threshold_critical | Minimum critical acceptable percent of 2xx requests | string | `90` | no |
 | http_2xx_requests_threshold_warning | Minimum warning acceptable percent of 2xx requests | string | `95` | no |
-| http_404_requests_threshold_critical | Maximum critical acceptable percent of 404 errors | string | `40` | no |
-| http_404_requests_threshold_warning | Maximum warning acceptable percent of 404 errors | string | `30` | no |
+| http_4xx_requests_threshold_critical | Maximum critical acceptable percent of 4xx errors | string | `40` | no |
+| http_4xx_requests_threshold_warning | Maximum warning acceptable percent of 4xx errors | string | `30` | no |
 | http_5xx_requests_threshold_critical | Maximum critical acceptable percent of 5xx errors | string | `40` | no |
 | http_5xx_requests_threshold_warning | Maximum warning acceptable percent of 5xx errors | string | `30` | no |
 | memory_usage_threshold_critical | Alerting threshold in Mib | string | `52430000` | no |
diff --git a/cloud/azure/app-services/inputs.tf b/cloud/azure/app-services/inputs.tf
index bc50156..3085251 100644
--- a/cloud/azure/app-services/inputs.tf
+++ b/cloud/azure/app-services/inputs.tf
@@ -65,17 +65,17 @@ variable "http_5xx_requests_threshold_warning" {
 }
 
 #################################
-###   HTTP 404 status pages   ###
+###   HTTP 4xx status pages   ###
 #################################
 
-variable "http_404_requests_threshold_critical" {
+variable "http_4xx_requests_threshold_critical" {
   default     = 30
-  description = "Maximum critical acceptable percent of 404 errors"
+  description = "Maximum critical acceptable percent of 4xx errors"
 }
 
-variable "http_404_requests_threshold_warning" {
+variable "http_4xx_requests_threshold_warning" {
   default     = 15
-  description = "Maximum warning acceptable percent of 404 errors"
+  description = "Maximum warning acceptable percent of 4xx errors"
 }
 
 #################################
diff --git a/cloud/azure/app-services/monitors-app_services.tf b/cloud/azure/app-services/monitors-app_services.tf
index 3f8b49b..02cf2d9 100644
--- a/cloud/azure/app-services/monitors-app_services.tf
+++ b/cloud/azure/app-services/monitors-app_services.tf
@@ -94,25 +94,25 @@ resource "datadog_monitor" "appservices_http_5xx_errors_count" {
   tags = ["env:${var.environment}", "resource:appservices", "team:azure", "provider:azure"]
 }
 
-# Monitoring App Services 404 errors percent
-resource "datadog_monitor" "appservices_http_404_errors_count" {
-  name    = "[${var.environment}] App Services HTTP 404 errors is {{value}}% above the limit on {{name}}"
+# Monitoring App Services 4xx errors percent
+resource "datadog_monitor" "appservices_http_4xx_errors_count" {
+  name    = "[${var.environment}] App Services HTTP 4xx errors is {{value}}% above the limit on {{name}}"
   type    = "metric alert"
   message = "${var.message}"
 
   query = <<EOF
     sum(last_5m): (
-      avg:azure.app_services.http404{${data.template_file.filter.rendered}} by {resource_group,region,name}.as_count() /
+      avg:azure.app_services.http4xx{${data.template_file.filter.rendered}} by {resource_group,region,name}.as_count() /
       avg:azure.app_services.requests{${data.template_file.filter.rendered}} by {resource_group,region,name}.as_count()
-    ) * 100 > ${var.http_404_requests_threshold_critical}
+    ) * 100 > ${var.http_4xx_requests_threshold_critical}
   EOF
 
   evaluation_delay = "${var.delay}"
   new_host_delay   = "${var.delay}"
 
   thresholds {
-    warning  = "${var.http_404_requests_threshold_warning}"
-    critical = "${var.http_404_requests_threshold_critical}"
+    warning  = "${var.http_4xx_requests_threshold_warning}"
+    critical = "${var.http_4xx_requests_threshold_critical}"
   }
 
   notify_no_data      = false # Will NOT notify when no data is received