  Bell nonlocality is one of the most intriguing and counter-intuitive
phenomena displayed by quantum systems. Interestingly, such
stronger-than-classical quantum correlations are somehow constrained, and one
important question to the foundations of quantum theory is whether there is a
physical, operational principle responsible for those constraints. One
candidate is the information causality principle, which, in some particular
cases, is proven to hold for quantum systems and to be violated by
stronger-than-quantum correlations. In multipartite scenarios, though, it is
known that the original formulation of the information causality principle
fails to detect even extremal stronger-than-quantum correlations, thus
suggesting that a genuinely multipartite formulation of the principle is
necessary. In this work, we advance towards this goal, reporting a new
formulation of the information causality principle in multipartite scenarios.
By proposing a change of perspective, we obtain multipartite informational
inequalities that work as necessary criteria for the principle to hold. We
prove that such inequalities hold for all quantum resources, and forbid some
stronger-than-quantum ones. Finally, we show that our approach can be
strengthened if multiple copies of the resource are available, or,
counter-intuitively, if noisy communication channels are employed.
