String
The promotion as the Commerce Agent reads it: what is discounted, for whom, and any code to use. The agent may repeat it to shoppers.
Set when Redo found this promotion on the brand’s homepage, and kept if the details are edited later. Null when the promotion was added by the merchant or through this API.
ID!
required
The id of this agenda item. Pass it to an
update or remove agenda operation on updateCalendarEvent.required
What this item adds to the event.