Hello,
Please explain what you means by "send a mail such as confirm product from admin panel".
Joomla do store the language information for the users ; there is no need of special setting in HikaMarket.
Also, when you create a thread in our forum, please provide the requested details about your website and the version of HikaShop and HIkaMarket you're using.
We also recommend to use the account who own the licence or to indicate the registered website (which can be private).
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.