Companies often build an innovation strategy that is mostly reliant on internal knowledge and resources. This can lead to failure to meet customer needs (von Hippel 1986). By interacting with customers, companies can obtain crucial information and have the opportunity to involve customers in innovation and product development processes (Füller and Matzler 2007; Hadjikhani and Bengtson 2004; Laursen 2011; von Hippel 2009).