This one is on the IT side. SQLServerCentral.com explains Liberating the DBA from SQL Authentication with AD Groups The ONLY way to do this in an environment that includes Dynamics GP is with Config AD from Fastpath.
Liberating the DBA from SQL Authentication with AD Groups – SQLServerCentral
SQL & DataInstall, Upgrade & Admin
Archived post from 2015. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.