We use HESK for our company (25 fte) to register our incidents, changes, problems and projects. Sometimes, we need to assign a ticket to a supplier/vendor. I've added them as a worker within HESK, and added their ticket system e-mail address.
The good news is: As soon I assign the ticket to one of them, they will receive the ticket by mail and will create automatically a ticket within their own system. They will also send automatically a message to our ticket system with our and their own ticket number. Also a status update will be send by them and also the closure mail.
The bad news is: HESK will always create a new ticket ...
Is there a way to tell HESK, to accept ANY mail and to update the ticket system, when OUR ticket ID is within the subject of the mail?
I can't ask the supplier/vendor to work within out ticket system

Best regards,
Uli