Auto Tax Calculator has the following security roles:
The Auto Tax Calculator Administrator is given the right to configure as well as use Auto Tax Calculator solution.
The Auto Tax Calculator User is given the right to use Auto Tax Calculator solution to calculate tax automatically for OOB entities like Opportunity, Quote, Order or Invoice.
Follow the steps below to assign security roles to users.
Go to Advanced Settings --> Settings --> Security.
Select user --> Click on Manage Roles
Click on any one of the security roles --> Click Ok.