As of now CA PAM is only able to do multiple approvers but all at the same level.
For example, a password view request is sent to Approver A and B. If either of them approves it , the password view request is then approved.
This is the currently flow of Dual Authorization in CA PAM.
CA PAM can improved by doing multiple level approval.
For example, a password view request is sent to Approver A and B. Approver A approves, but Approver B have yet to approve or deny the request, the password view request is either expired or denied.
Both Approver A and Approver B MUST approve the request in order for the password to be viewed by the requestor.
This is what i am referring to and it will be good that multiple level approval can work with multiple approvers.