diff --git a/website/content/docs/agent/autoauth/methods/gcp.mdx b/website/content/docs/agent/autoauth/methods/gcp.mdx
index 0f15a1dfd..1fb8e5ddc 100644
--- a/website/content/docs/agent/autoauth/methods/gcp.mdx
+++ b/website/content/docs/agent/autoauth/methods/gcp.mdx
@@ -32,6 +32,3 @@ determine these.
 
 - `jwt_exp` `(string or int: optional)` - The number of minutes a generated JWT
   should be valid for when using the `iam` method; defaults to 15 minutes
-
--> **Note:** The `project` parameter has been removed in Vault 1.5.9+, 1.6.5+, and 1.7.2+.
-It is no longer needed for configuration and will be ignored if provided.
diff --git a/website/content/docs/auth/gcp.mdx b/website/content/docs/auth/gcp.mdx
index a557d5312..5b6c47d42 100644
--- a/website/content/docs/auth/gcp.mdx
+++ b/website/content/docs/auth/gcp.mdx
@@ -26,7 +26,7 @@ but is automatically bundled in Vault releases. Please file all feature
 requests, bugs, and pull requests specific to the GCP plugin under that
 repository.
 
-## Authenticate
+## Authentication
 
 ### Via the CLI Helper
 
@@ -43,9 +43,6 @@ $ vault login -method=gcp \
 
 For more usage information, run `vault auth help gcp`.
 
--> **Note:** The `project` parameter has been removed in Vault 1.5.9+, 1.6.5+, and 1.7.2+.
-It is no longer needed for configuration and will be ignored if provided.
-
 ### Via the CLI
 
 ```shell-session
@@ -88,7 +85,11 @@ management tool.
 
    If you are using instance credentials or want to specify credentials via
    an environment variable, you can skip this step. To learn more, see the
-   [Google Cloud Authentication](#authentication) section below.
+   [Google Cloud Credentials](#gcp-credentials) section below.
+
+   -> **Note**: If you're using a [Private Google Access](https://cloud.google.com/vpc/docs/configure-private-google-access)
+   environment, you will additionally need to configure your environment’s custom endpoints
+   via the [custom_endpoint](/api-docs/auth/gcp#custom_endpoint) configuration parameter.
 
 1. Create a named role:
 
@@ -118,7 +119,7 @@ management tool.
    For the complete list of configuration options for each type, please see the
    [API documentation][api-docs].
 
-## Authentication
+## GCP Credentials
 
 The Google Cloud Vault auth method uses the official Google Cloud Golang SDK.
 This means it supports the common ways of [providing credentials to Google