Adding a note explaining the configuration behavior

website/docs/r/container_app.html.markdown

@@ -227,7 +227,7 @@ A `container` block supports the following:
 
 * `env` - (Optional) One or more `env` blocks as detailed below.
 
-* `ephemeral_storage` - The amount of ephemeral storage available to the Container App. 
+* `ephemeral_storage` - The amount of ephemeral storage available to the Container App.
 
 ~> **NOTE:** `ephemeral_storage` is currently in preview and not configurable at this time.
 
@@ -380,7 +380,7 @@ An `ingress` block supports the following:
 * `ip_security_restriction` - (Optional) One or more `ip_security_restriction` blocks for IP-filtering rules as defined below.
 
 * `target_port` - (Required) The target port on the container for the Ingress traffic.
- 
+
 * `exposed_port` - (Optional) The exposed port on the container for the Ingress traffic.
 
 ~> **Note:** `exposed_port` can only be specified when `transport` is set to `tcp`.
@@ -389,6 +389,8 @@ An `ingress` block supports the following:
 
 * `transport` - (Optional) The transport method for the Ingress. Possible values are `auto`, `http`, `http2` and `tcp`. Defaults to `auto`.
 
+~> **Note:**  if `transport` is set to `tcp`, `exposed_port` and `target_port` should be set at the same time.
+
 ---
 
 A `ip_security_restriction` block supports the following:
@@ -419,7 +421,7 @@ A `traffic_weight` block supports the following:
 
 * `percentage` - (Required) The percentage of traffic which should be sent this revision.
 
-~> **Note:** The cumulative values for `weight` must equal 100 exactly and explicitly, no default weights are assumed. 
+~> **Note:** The cumulative values for `weight` must equal 100 exactly and explicitly, no default weights are assumed.
 
 ---
 
@@ -447,8 +449,6 @@ The authentication details must also be supplied, `identity` and `username`/`pas
 
 * `username` - (Optional) The username to use for this Container Registry, `password_secret_name` must also be supplied..
 
-
-
 ## Attributes Reference
 
 In addition to the Arguments listed above - the following Attributes are exported: