Once you have created Organizations, use those Organizations to define security for solution owning groups and internal audiences.
Owning Groups control view/modify access to solutions and the ability to perform approve/reject tasks on the solutions
Internal Audiences are optional and control additional view access to solutions within ATG Service Center.
Parent and Child Owning Groups
Users must be directly or indirectly granted an organizational role whose organization exactly matches the solution owning group. Granting the user an organizational role whose organization is either a parent or a child organization of the solution owning group organization does not grant the user permission to the solution.
To create Owning Groups and Internal Audiences:
Create your organizations in the BCC.
Open ATG Service Administration > Service Center > Global Service Center Settings > Organization Lists
Specify the organization to use as owning groups and internal audiences.