Notify Customer Manager

[RBehr]

Customer A raises a ticket. Customer B, who is Customer A's manager, needs notification about this ticket.

I first thought of giving Customer A two e-mail addresses separated by comma or semi-colon, but OTRS doesn't like that. How would I go about doing this? It's not simply a case of Customer ID, since Customer C has the same Customer ID (in our case, this means they work for the same company), but doesn't want to be notified.

It may not simply be a person and their manager. I may have multiple customers I need to notify when a ticket is raised by a single customer.

Any ideas?