Approval

I have PO's going through approval.

I want to put on PLD the name of the approver. I linked it to User Table.

The name does show up but always the same. My approval rule is that I have 2 Approvers but only 1 of them needs to approve it. I want to catch the name who actually approved it first.

When right clicking on the PO I see who approved it. How can I get that on the PLD Po form.

Thanks