Approval Rule for Multiple HR Representatives in the Same AOR

Hi,

we are working with HR Representatives, each assigned to specific Areas of Responsibility (AOR).

To avoid delays in the approval process when one representative is on holiday, we’ve assigned two HR Reps per department by giving each rep an additional AOR.

How can we configure the approval rule so that both HR Reps are notified simultaneously when an approval is triggered?

Thanks in advance!