By default Tally.Server 9 allows you to provide access to data end points using unique identity parameters such as System Name, IP Address, Domain User Name and Domain User Group. In case of local user groups (list of users specific to an individual computer) Tally.Server 9 does not identify these users since they have restricted scope of access within the system. Hence, they are not listed for selection when providing access to end points for users.
You can however provide access to the entire work group by entering the System Name or IP Address while providing access. In this scenario, the local user groups on that particular computer will be able to access data on Tally.Server 9 only from that computer.