I wish to know the Difference between AM and BE license.
BE = Business Essentials
AM = Advanced Management
These are the two modes in which NAV licenses are provided by MS. BE contains the basic modules, while AM is an extended license.
For more details the content of each license mode have a look at CustomerSource/PartnerSource and serach for: Business Ready Licensing for Microsoft Dynamics NAV.
Or if you’re not a customer yet, contact a NAV partner and they can get you documents about the differences between the two.