This help doc will cover using
add-on merchandise on an assigned seating
event. With this setting, event-specific
merchandise can be added automatically to a
seat on a seat map. The user does not have the
option to add the merchandise (it is included
and pre-defined).
A promoter might use this option if
a seat came with a pre-defined merchandise
item and they
want the item to be listed separately in
reporting vs simply including the item in the
price of the ticket.