|Working with Organizations / About Organizations and Communities|
Hospitals have a community that extends to one level of affiliated organizations. Users who are members of any hospital or practice within the community are permitted to contact each other. Organizations that are indirect affiliates within a hospital's community have the same permissions that they share with the parent hospital.
For example, suppose Hospital A is affiliated with both Hospital B and Hospital C. Hospitals B and C are both in the community of Hospital A, so their users are able to communicate with each other as well as with users of Hospital A.
In addition, suppose Hospital D is an affiliate of Hospital B. In this situation, Hospitals A and D are both in the community of Hospital B, so their users are able to communicate with each other as well as with users of Hospital B. However, users in Hospital D and Hospital C are not able to communicate with each other, because those two hospitals are not in the same community. Hospital A's community extends only to one level, and Hospital D is two levels removed from Hospital A.