diff --git a/internal/services/monitor/monitor_activity_log_alert_resource.go b/internal/services/monitor/monitor_activity_log_alert_resource.go
index f8c7909dac5e..391fe876cd89 100644
--- a/internal/services/monitor/monitor_activity_log_alert_resource.go
+++ b/internal/services/monitor/monitor_activity_log_alert_resource.go
@@ -1,7 +1,6 @@
 package monitor
 
 import (
-	"bytes"
 	"fmt"
 	"log"
 	"strings"
@@ -269,7 +268,7 @@ func resourceMonitorActivityLogAlert() *pluginsdk.Resource {
 			},
 
 			"action": {
-				Type:     pluginsdk.TypeSet,
+				Type:     pluginsdk.TypeList,
 				Optional: true,
 				Elem: &pluginsdk.Resource{
 					Schema: map[string]*pluginsdk.Schema{
@@ -287,7 +286,6 @@ func resourceMonitorActivityLogAlert() *pluginsdk.Resource {
 						},
 					},
 				},
-				Set: resourceMonitorActivityLogAlertActionHash,
 			},
 
 			"description": {
@@ -331,11 +329,10 @@ func resourceMonitorActivityLogAlertCreateUpdate(d *pluginsdk.ResourceData, meta
 	description := d.Get("description").(string)
 	scopesRaw := d.Get("scopes").(*pluginsdk.Set).List()
 	criteriaRaw := d.Get("criteria").([]interface{})
-	actionRaw := d.Get("action").(*pluginsdk.Set).List()
+	actionRaw := d.Get("action").([]interface{})
 
 	t := d.Get("tags").(map[string]interface{})
 	expandedTags := tags.Expand(t)
-
 	parameters := insights.ActivityLogAlertResource{
 		Location: utils.String(azure.NormalizeLocation("Global")),
 		AlertRuleProperties: &insights.AlertRuleProperties{
@@ -746,11 +743,3 @@ func flattenMonitorActivityLogAlertAction(input *insights.ActionList) (result []
 	}
 	return result
 }
-
-func resourceMonitorActivityLogAlertActionHash(input interface{}) int {
-	var buf bytes.Buffer
-	if v, ok := input.(map[string]interface{}); ok {
-		buf.WriteString(fmt.Sprintf("%s-", v["action_group_id"].(string)))
-	}
-	return pluginsdk.HashString(buf.String())
-}
diff --git a/internal/services/monitor/monitor_activity_log_alert_resource_test.go b/internal/services/monitor/monitor_activity_log_alert_resource_test.go
index a6f2a99401b4..fdd459d027d1 100644
--- a/internal/services/monitor/monitor_activity_log_alert_resource_test.go
+++ b/internal/services/monitor/monitor_activity_log_alert_resource_test.go
@@ -101,6 +101,28 @@ func TestAccMonitorActivityLogAlert_complete(t *testing.T) {
 	})
 }
 
+func TestAccMonitorActivityLogAlert_actionWebhook(t *testing.T) {
+	data := acceptance.BuildTestData(t, "azurerm_monitor_activity_log_alert", "test")
+	r := MonitorActivityLogAlertResource{}
+
+	data.ResourceTest(t, r, []acceptance.TestStep{
+		{
+			Config: r.basicWebhook(data),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(),
+		{
+			Config: r.updateWebhook(data),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(),
+	})
+}
+
 func TestAccMonitorActivityLogAlert_criteria(t *testing.T) {
 	data := acceptance.BuildTestData(t, "azurerm_monitor_activity_log_alert", "test")
 	r := MonitorActivityLogAlertResource{}
@@ -357,6 +379,128 @@ resource "azurerm_monitor_activity_log_alert" "test" {
 `, data.RandomInteger, data.Locations.Primary, data.RandomInteger, data.RandomString, data.RandomInteger)
 }
 
+func (MonitorActivityLogAlertResource) basicWebhook(data acceptance.TestData) string {
+	return fmt.Sprintf(`
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "test" {
+  name     = "acctestRG-%d"
+  location = "%s"
+}
+
+resource "azurerm_monitor_action_group" "test" {
+  name                = "acctestActionGroup-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  short_name          = "acctestag"
+}
+
+resource "azurerm_monitor_action_group" "test2" {
+  name                = "acctestActionGroup2-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  short_name          = "acctestag2"
+}
+
+resource "azurerm_storage_account" "test" {
+  name                     = "acctestsa%s"
+  resource_group_name      = azurerm_resource_group.test.name
+  location                 = azurerm_resource_group.test.location
+  account_tier             = "Standard"
+  account_replication_type = "LRS"
+}
+
+resource "azurerm_monitor_activity_log_alert" "test" {
+  name                = "acctestActivityLogAlert-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  scopes              = [azurerm_resource_group.test.id]
+
+  criteria {
+    operation_name = "Microsoft.Storage/storageAccounts/write"
+    category       = "Recommendation"
+    resource_id    = azurerm_storage_account.test.id
+  }
+
+  action {
+    action_group_id = azurerm_monitor_action_group.test.id
+    webhook_properties = {
+      from = "terraform test"
+    }
+  }
+
+  action {
+    action_group_id = azurerm_monitor_action_group.test2.id
+    webhook_properties = {
+      to   = "microsoft azure"
+      from = "terraform test"
+    }
+  }
+}
+`, data.RandomInteger, data.Locations.Primary, data.RandomInteger, data.RandomInteger, data.RandomString, data.RandomInteger)
+}
+
+func (MonitorActivityLogAlertResource) updateWebhook(data acceptance.TestData) string {
+	return fmt.Sprintf(`
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "test" {
+  name     = "acctestRG-%d"
+  location = "%s"
+}
+
+resource "azurerm_monitor_action_group" "test" {
+  name                = "acctestActionGroup-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  short_name          = "acctestag"
+}
+
+resource "azurerm_monitor_action_group" "test2" {
+  name                = "acctestActionGroup2-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  short_name          = "acctestag2"
+}
+
+resource "azurerm_storage_account" "test" {
+  name                     = "acctestsa%s"
+  resource_group_name      = azurerm_resource_group.test.name
+  location                 = azurerm_resource_group.test.location
+  account_tier             = "Standard"
+  account_replication_type = "LRS"
+}
+
+resource "azurerm_monitor_activity_log_alert" "test" {
+  name                = "acctestActivityLogAlert-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  scopes              = [azurerm_resource_group.test.id]
+
+  criteria {
+    operation_name = "Microsoft.Storage/storageAccounts/write"
+    category       = "Recommendation"
+    resource_id    = azurerm_storage_account.test.id
+  }
+
+  action {
+    action_group_id = azurerm_monitor_action_group.test2.id
+    webhook_properties = {
+      from = "terraform test"
+      to   = "microsoft azure"
+      env  = "test"
+    }
+  }
+
+  action {
+    action_group_id = azurerm_monitor_action_group.test.id
+    webhook_properties = {
+      from = "terraform test"
+      env  = "test"
+    }
+  }
+}
+`, data.RandomInteger, data.Locations.Primary, data.RandomInteger, data.RandomInteger, data.RandomString, data.RandomInteger)
+}
+
 func (MonitorActivityLogAlertResource) complete(data acceptance.TestData) string {
 	return fmt.Sprintf(`
 provider "azurerm" {