Is it possible to assign different roles to the users of the same company?

No, at the moment it is not possible to assign different roles to users of a business account on fluid-hub. All users associated with the same company have the same permissions and can operate in the same way on the platform. There is no distinction between administrators and standard users, but there is an implicit distinction: each user can see all the company orders, but only the user who placed an order can modify it, request returns or cancel it. 

All users associated with the same company have:

• The same permissions and access to the same features
• Visibility on all company orders (not just their own personal orders)
• The possibility to place orders on behalf of the company
• Access to shared company data (addresses, address book, etc.)

To discover in detail what each user can see, read Do all users see the same orders? If, however, you want to know how to invite a colleague, read How can I add a new company user?