This is helpful, a list of the ESS Security Roles in Microsoft Dynamics GP 2013 and Microsoft Dynamics GP 2015 – What do they give users access to?
ESS Security Roles in Microsoft Dynamics GP 2013 and Microsoft Dynamics GP 2015 – What do they give users access to?
Install, Upgrade & AdminGP 2015GP 2013
Archived post from 2016. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.