When I want to send a posted sales invoice (for instance) and press "Send via mail" - the proposed mail subject (and file name) is based on the language I am using and not the language of the customer. So in my case english customers will receive an email with Danish subject (unless I change the application language to English :-)). Not very good for an international ERP-system :-)
I am doing it in BC but I think the issue also exists in NAV 2018.
Anyone has a solution for this? Or should I try to develop an extension to make it work?