show bp member products

in the buddypress user profile page I need to show his products.
The shortcode is:
echo do_shortcode ('[wcv_products vendor = "USER HERE"]');
but I can not call the username in the shortcode.
I tried with:
echo do_shortcode('[wcv_products vendor="'.bp_core_get_user_displayname( bp_user_fullname() ).'"]');
without success.
Where i wrong? any solutions?
thanks!