Returns a list of users who are not currently in a community group. 

This method can be accessed through the CommunityGroup.asmx file located in:

~/Workarea/webservices/WebServiceAPI/Community/CommunityGroup.asmx

[SoapHeader("AuthHeader")]
[SoapHeader("RequestInfoHeader")]
[WebMethod(MessageName = "GetAllUnassignedCommunityGroupUsers", Description = "Returns a list of users who are not currently in a community group.")]
public DirectoryUserData[] GetAllUnassignedCommunityGroupUsers(ref CommunityGroupObjectRequest request);

<SoapHeader("AuthHeader")>
<SoapHeader("RequestInfoHeader")>
<WebMethod(MessageName = "GetAllUnassignedCommunityGroupUsers", Description = "Returns a list of users who are not currently in a community group.")>
Public Function GetAllUnassignedCommunityGroupUsers(ByRef request As CommunityGroupObjectRequest) As DirectoryUserData()