To install Live Assist for Dynamics 365 the user which starts the installation will require the System Administrator role, as per this article: How to Start a Trial.
To do this you can log your user in to Dynamics 365.
Note: if your screen looks different from the above, delete the part of the URL after ".com", and replace it with "/main.aspx" (e.g. https://acmeusa.crm.dynamics.com/main.aspx).
Go to the Settings menu and select Security:
Go To Users:
Select your admin user from the list of Enabled Users and go to Manage Roles
Inside Manage User Roles ensure that System Administrator is checked, then save your changes.
Note: Enabling Live Assist Roles in this area is not supported.
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