There are four different user levels on Goodshuffle Pro: Account Owners/Admins, Full Users, Limited Users, and Read-Only Users. Here's a list of the permissions and abilities for all user levels.
In general, Full Users and the Account Owner can perform many of the same functions, and Limited Users are blocked from seeing any financial information. Another important thing to remember is Limited Users will only see projects they've been added to. Read-Only users are just that - they can only read fulfillment information (i.e. no financials), and must be added to orders to view. They can not take action in Fulfillment.