The WDM trading system recognises three types of users - Trader, Privileged and Inquiry. Trading Members can have all the three user types whereas Participants are allowed privileged and inquiry users only.

The user-id of a trader gives access for entering orders or trades on the trading system. The privileged user has the exclusive right to set up counter party exposure limits. The Inquiry user can only view the market information and set up the market watch screen but cannot enter orders or trade or set up exposure limits.