On the Suppliers page you'll be able to build custom reports with the data located in Suppliers as well as build commission based reports pivoting data around the suppliers. 

A simple usage of this would be to get all the relevant data you would like to see at a glance on the default Active view for your Suppliers. Here' a quick example of what that could look like below.

To make changes to your default Supplier columns you'll need to navigate to the basic fields page.

Supplier variance reports can now be built out with more detail than our default one located in Commissions > Supplier Variance.