Hi Sue,
As Jakub said, you will need to be sure that the person object in CME does not have any Call Center Pulse related rank assigned.
Moreover, for a Genesys user to be able to use a certain application, the user will need at least Read & Execute rights on that application object.
If, for example, you want to prevent a Genesys user from seeing or using a StatServer (for example, Universal Routing StatServer, which is critical to your business), you can configure the user to have no access to that StatServer object.
Regards,
Andrei