You can review a policy's history
The API offers an operation that allows you to view change information for an existing policy.
This is accomplished by running the "Get policy history" operation via the ACE API. You need the following values to run this operation:
propertyId: This is the unique ID value associated with the base configuration that houses the subcustomers you want to list. Contact your Account Representative for this value.
domainName: This is hostname (domain) associated with the subcustomer for the target policy.
network: You need to decide which network version of the policy you want to view change information: production (live) or staging (testing).
Review the ACE API docs
Call formatting and other specifics are covered in the ACE API documentation: