Accessed from the 
icon from customer selection via the Sales UAM and also linked via the 
icon from Ordering Customer revision.
A group customer is a virtual or actual customer group. The purpose of a Group is to allow pricing and / or analysis of sales values etc for different ordering customers
The left grid lists all the different Groups set-up while the right grid shows all the Ordering Customers linked under the highlighted group.
ADD - Add a new customer Group. A group number must be entered and a group name. Two further options which only relate to "Van System" users. These options are to force a specific ledger customer and price list to be used for customer additions from the Van systems.
REVISE - Amend the customer Group details.
DELETE - Remove a Group. This can only be done if all ordering customer links are removed.
ACTIVE - Make the Group Active / Inactive
TOGGLE - Switch between Active and All Groups.
GO TO - Search for Groups numbers beginning.
GRP PRICES - Access the pricing for the highlighted Group. This acts in the same way as customer pricing.
CUSTOMERS - Access the Customer grid to Add and Remove Ordering Customers from the Group.