Assignees are the people who withdraw fuel. All users with fuel access will automatically appear in the assignee's list.
If people withdraw fuel but are not users in Levno, you can manually add them to the assignee list and allocate the withdrawal to them.
Navigate to Fuel in the App.
Your new assignee should now be in your tags list.
Watch a short how to video here
Also see: How to allocate Fuel withdrawals