Advanced Scheduler not fetching the Group Resource

Hi,

When I was scheduling a field service task, advanced scheduler is not fetching the group resource assigned to a territory but it is fetching rest of the individual resources assigned to the same territory.

 Is it the normal functionality or do we need to change any setups?

Oracle Version: R12.1.3

Our requirement: Advanced scheduler should fetch both indivdual and group resources for task

Note: In Scheduling Rules, the Resource Type is left blank.

Thanks in Advance

Pavithara