Explanation
When a group is granted the 'Authorize Account Requests' permission on a safe, dual control requests must be approved by the number of persons specified by the Master Policy. This means that the request will be sent to all the members of the group, but only a certain number of them need to confirm it for the request to be authorized. The Master Policy defines the number of required approvers for each level of confirmation, as well as the number of levels. For example, if the Master Policy requires two approvers at the first level and one approver at the second level, then the request will be sent to the group and two members of the group must confirm it before it is sent to the second level of confirmation, where one more approver is needed.
References:
* Request access
* Safe Members
* CyberArk Defender - PAM Exam Practice Test