VMware Aria Operations 8.x
This issue occurs because Aria Operations uses unique UUIDs for policy hierarchies. When a policy is exported, the XML file contains a Parent policy key UUID. If this UUID does not exist or match the Default policy in the destination cluster, the system creates a new parent policy to maintain the hierarchy defined in the XML.
To import a policy as a child of the existing Default Policy on a new site, align the XML metadata with the destination cluster's identifiers.
Policy key field and copy the UUID.parentPolicy and replace the existing UUID with the one copied in Step 3.