When we start to map classes in the ETL for any class we always find two fields in the mapping, namely "Source Native Key" and "Source Recency Timestamp". I don't understand there significance.
Refer the following screenshot.
In this case I am mapping in cmdb_ci_vcenter_cluster class.
I need following answer:
1) Are "Source Native Key" and "Source Recency Timestamp" attributes of "cmdb_ci_vcenter_cluster" class.
2) what is there significance.
3) Are these fields mandatory to map?
