Prevent same approver to approve L2 approval if she approves the L1 already (Payments Approval)

Summary:

We need to have 2 levels of approval for payments, we have L1 (level1 approval group) and L2 (level2 approval group). But the members are with same approvers, and as a requirement there should be no repeated approver in both levels. If approver1 already claim and approved L1, she can no longer be allowed to approver in L2. How can we achieve this requirement in payments approval using approval groups with parallel first responder wins.

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