Admin notification email Hi.... name is blank

-- HikaShop version -- : 2.2.3

order_admin_notification.preload.php reflects:
'HI_CUSTOMER' => JText::sprintf('HI_CUSTOMER', @$mail->to_name),

I cannot find where $mail->to_name might be populated.
I have a few HikaShop 2.2.3 sites where the admin notification body reflects:
Hi ,
SUMMARY OF THE ORDER

I can hard code the admins name in the preload file and have my customer satisfied, but I would like to know what the problem is.

Thanks for any advise.

Hi,

It's actually not a problem.
There is no setting to set the admin name for admin notifications so the system doesn't have anything to rely on to add it there.
That's why you just see "Hi,".
We didn't feel that adding an option for that would be worth it as we already have plenty of options and that this wasn't really an issue.

If you want to add a name there, I would have recommended to edit the preload file, so what you did is great.