@Joseph Patrick
Thank you for your post and I apologize for the delayed response!
When it comes to Privileged Identity Management (PIM) and creating/assigning a secondary approver, a Global Administrator can assign other users to the Privileged Role Administrator role. Users with this role can manage role assignments in Azure Active Directory, as well as within PIM. In addition, this role allows management of all aspects of PIM and administrative units.
Additional Links:
Approve or deny requests for Azure resource roles in Privileged Identity Management
Approve or deny requests for Azure AD roles in Privileged Identity Management
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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