Question
Computed attribute evaluation failed.
As per the requirement wanted to know the last product purchase by the user. We are capturing the product in the event base class which has a product name attribute. But the evaluation failed is there any way to debug, also for evaluation need to wait for 24 hrs.
Definition
xEvent[_abc.rb_productName.isNotNull()].topN(timestamp, 1).map({"timestamp": timestamp, "value": _abc.rb_productName}).head()