Sending notifications to VK users?

Question

PHP

Hello.
I am developing an IFrame application for the social network Vkontakte. There were problems sending a notification to app users. To send notifications, I use the secure.sendNotification API method , I send all the necessary parameters (user_ids, message), as well as additional parameters (access_token, client_secret) according to the https://vk.com/dev/secure_how_to scheme, but I get an error: {"error_code ":7,"error_msg":"Permission to perform this action is denied: only iframe and flash applications can use notifications"}. The message is very strange since the application is IFrame, but it says that only iframe and flash applications can use notifications.
It's decided.

Answer 1

https://vk.com/dev/errors
Error #7
Make sure that your have received required permissions during the authorization. You can do it with the account.getAppPermissions method.