When a project starts, a consultant will take all the requirements needed to implement Dynamics NAV and determine which of those requirements will be covered with the standard application and which ones will be developed for you.
Implementing Dynamics NAV for a company is a unique process since it is going to cover specific needs of your company. Even for similar companies, there will be many differences in the process that will make the implementation unique. No matter how much experience the implementer has in the companies of your sector, you and the people in your organization are the best testers to verify that everything works as defined.
Usually, the implementer will setup a second Dynamics NAV server for you so that you can test the system before it goes to production. The consultants and developers will conduct their own test before delivering the solution but it is also important that you invest time in testing whatever you have received. Any issue...