Multiple Service Desks With Different Permission Schemes

Yes, you can add different users/groups into the Service Desk permissions. See https://confluence.atlassian.com/display/SERVICEDESK/JIRA+Service+Desk+permissions

Yes thanks @Sebastian Domanski - that is what I have done, and added customers using the project roles.

Very, very simple when you know how!

Turns out I was approaching this incorrectly.

All I needed to do was assign the user group to the appropriate role in the project administration, rather than try to create multiple roles.

This is where I am getting confused:

https://confluence.atlassian.com/display/SERVICEDESK/Using+custom+permission+schemes

"Service Desk Customers: The security type reads the role to determine who are customers"

My problem is that the security type reads from one role only - for this to work for me I would need a security type for internal, and external customers (as these security types seem compulsory) and for these to look at internal or external roles.

I have both Service Desks set to "Everyone with an account can access my Customer Portal", and was then hoping to limit the desks customers can see by permissions, but perhaps I am approaching this incorrectly.

Could anyone tell me what I am missing?

Thanks Jobin - that confluence page is where I started my project, but I will go through it again and report any further issues.