Our organization is trying to use CiviCase as a ticketing system. So we have one case type, the "Ticket".
We can have multiple Tickets open for the same client. However, I can't assign the same contact as a "Case Manager" for multiple tickets to the same client.
So let's say client A has 2 open Tickets. On the first Ticket, I assign myself as the Case Manager. That works as expected. However, when I try to assign myself as the Case Manager of the second Ticket for client A, I get an error:
The relationship type definition for the case role is not valid for the client and / or staff contact types.
If I create 2 cases to the same client, I am automatically assigned as a Case Manager to both of those cases. However, if I remove myself as Case Manager, and try to re-add myself, I get the same error as above.
How can I assign myself (or anybody else) as the Case Manager of multiple cases to the same client.