The web client in Dynamics NAV comes with any installation of Dynamics NAV 2013. It therefore seemes obvious to utilize it for creating a customer portal, enabling the customers to log on to our Dynamics NAV to maintain certain data in your database and enter orders directly into the system. Don’t worry that a solution like this would be to expensive due of all all the extra users that need to acquired to the license, because this is why Dynamics NAV provides external users.