layers in dynamics ax

hello all,

i know Dynamics ax have many layers

i access to user layer

What do the layers cus , var , bus , sl1, 2 ,3 , … and other layer ?

What important work does and how to work with them?

Hi,

See the following link: http://msdn.microsoft.com/en-us/library/aa851164(v=ax.10).aspx

regards,

Thomas