Whenever user is trying to access a page, he/she doesn't have access to, he/she will get the following info:

Not Permitted
You are not permitted to perform this operation

However, when creating complex environments, this doesn't help that much because now the user does not know what to do next: he/she is not permitted to go somewhere, but what is that location and how to obtain access to it?

Our proposal is to add breadcrumbs to the top of the page stating something like this:

"Page location: Space Name / Folder 1 / Folder 2 / Article you were trying to reach" --> this way the user had some place to go in case of this kind of error message. Another option would be to show at least the Space name so that the Space admin can help user forward.