I have found a way to delete the duplicate asset from data center
https://confluence.atlassian.com/jirakb/duplicated-attribute-values-in-insight-objects-with-cardinality-maximum-1-1114816155.html
By refering we can delete duplicate asset but it works for data center i am unable to find asset heath checkup service for cloud,
just wanted to know is there any service still available or asset health checkp is only for data center , if not then how to delete duplicate asset in cloud ,,
Given
Importing the file has occured.
cannot make identifier as unique .
