Hi,
So you can just give the "listing" right on customer (user).
By removing "edit" and "show", they won't be able to see more than the data in the listing.
And if the listing display too much information ; you can use a view override to limit the display fields.
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.