# login to the adm. console
# go to the {nav E-commerce > Discounts & Certificates} section
# create new discount record, with some sub-records on the Items tab
# go to the {nav Logs & Reports > System Log} section
# confirm that no record with warning 'Field "Name" is not defined in "di" unit config' appeared in the System Log
# confirm that no record with notice 'Undefined index: Name' appeared in the System Log