Hi @ilya_g , you could create a Form within the Asana project so that can be used for all invoice submissions, without giving access to the project to IT, in your example.
The purpose of using a form is to create a standardized input method which will create a task per submission and add that task to your ‘New’ section or status.
The remaining statuses you mention can be setup in the project so that each task can flow through/into them.