Parallel Approval for CC manager using Payables workflow spreadsheet

Summary:

We have approval requirement where the AP invoice should route to the Cost Centre manager for approval.
But when we have invoice lines with multiple Cost centres, the approvals are not routing to the Cost centre managers one after another and if any CC manager approves it its getting approved without routing to the next CC manager.
Could you please help us in setting the rules in such way that it should route the CC managers one after the other.

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