Approve PIM request for Microsoft Entra Roles

I used New-MgRoleManagementDirectoryRoleAssignmentScheduleRequest to activate a role assignment.
Now this request is pending for approval from another user. I want to automate this approval process.

I found these resources but I was unable to form a PS request. https://learn.microsoft.com/en-us/entra/id-governance/privileged-identity-management/pim-approval-workflow#approve-requests

Solution

I have one PIM request for Microsoft Entra role that is pending for approval like this:

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To retrieve these details via PowerShell, you can run below MS Graph PowerShell command by signing in with Approver user and note Approval request ID:

Connect-MgGraph -Scope "RoleAssignmentSchedule.ReadWrite.Directory","PrivilegedAccess.ReadWrite.AzureAD"
Invoke-MgFilterRoleManagementDirectoryRoleAssignmentScheduleRequestByCurrentUser -Filter "status eq 'PendingApproval'"  -On "principal" | fl

Response:

enter image description here

To approve this PIM request of Microsoft Entra role via PowerShell, I ran below script and got response like this:

Connect-MgGraph -Scope "RoleAssignmentSchedule.ReadWrite.Directory","PrivilegedAccess.ReadWrite.AzureAD"

$params = @{
    reviewResult = "Approve"
    justification = "Trusted User"
}

Update-MgBetaRoleManagementDirectoryRoleAssignmentApprovalStep -ApprovalId $approvalId -ApprovalStepId $approvalStepId -BodyParameter $params

Response:

enter image description here

When I checked the same in Portal, role activated successfully as below:

enter image description here