<p>Creates a platform application object for one of the supported push notification services, such as APNS and GCM (Firebase Cloud Messaging), to which devices and mobile apps may register. You must specify <code>PlatformPrincipal</code> and <code>PlatformCredential</code> attributes when using the <code>CreatePlatformApplication</code> action.</p> <p> <code>PlatformPrincipal</code> and <code>PlatformCredential</code> are received from the notification service.</p> <ul> <li> <p>For <code>ADM</code>, <code>PlatformPrincipal</code> is <code>client id</code> and <code>PlatformCredential</code> is <code>client secret</code>.</p> </li> <li> <p>For <code>Baidu</code>, <code>PlatformPrincipal</code> is <code>API key</code> and <code>PlatformCredential</code> is <code>secret key</code>.</p> </li> <li> <p>For <code>APNS</code> and <code>APNS_SANDBOX</code> using certificate credentials, <code>PlatformPrincipal</code> is <code>SSL certificate</code> and <code>PlatformCredential</code> is <code>private key</code>.</p> </li> <li> <p>For <code>APNS</code> and <code>APNS_SANDBOX</code> using token credentials, <code>PlatformPrincipal</code> is <code>signing key ID</code> and <code>PlatformCredential</code> is <code>signing key</code>.</p> </li> <li> <p>For <code>GCM</code> (Firebase Cloud Messaging), there is no <code>PlatformPrincipal</code> and the <code>PlatformCredential</code> is <code>API key</code>.</p> </li> <li> <p>For <code>MPNS</code>, <code>PlatformPrincipal</code> is <code>TLS certificate</code> and <code>PlatformCredential</code> is <code>private key</code>.</p> </li> <li> <p>For <code>WNS</code>, <code>PlatformPrincipal</code> is <code>Package Security Identifier</code> and <code>PlatformCredential</code> is <code>secret key</code>.</p> </li> </ul> <p>You can use the returned <code>PlatformApplicationArn</code> as an attribute for the <code>CreatePlatformEndpoint</code> action.</p>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}