diff --git a/mongodbatlas/resource_mongodbatlas_event_trigger.go b/mongodbatlas/resource_mongodbatlas_event_trigger.go
index ac75b75c0c..c29924272a 100644
--- a/mongodbatlas/resource_mongodbatlas_event_trigger.go
+++ b/mongodbatlas/resource_mongodbatlas_event_trigger.go
@@ -43,6 +43,7 @@ func resourceMongoDBAtlasEventTriggers() *schema.Resource {
 			"app_id": {
 				Type:     schema.TypeString,
 				Required: true,
+				ForceNew: true,
 			},
 			"name": {
 				Type:     schema.TypeString,
diff --git a/website/docs/r/event_trigger.html.markdown b/website/docs/r/event_trigger.html.markdown
index 0fb8025b9f..d4fc878304 100644
--- a/website/docs/r/event_trigger.html.markdown
+++ b/website/docs/r/event_trigger.html.markdown
@@ -10,6 +10,8 @@ description: |-
 
 `mongodbatlas_event_trigger` provides a Event Trigger resource. 
 
+Note: If the `app_id` changes in the mongodbatlas_event_trigger resource, it will force a replacement and delete itself from the old Atlas App Services app if it still exists then create itself in the new  Atlas App Services app. See [Atlas Triggers](https://www.mongodb.com/docs/atlas/app-services/triggers/) to learn more.   
+
 ## Example Usages
 
 ### Example Usage: Database Trigger with Function