match receipt by criteria in Automatch rule set order of precedence in receivables system option

We have many multiple options in Match Receipt by Criteria in Receivable systems option. There are multiple options like Match Receipts By 1,Match Receipts By 2,Match Receipts By 3,Match Receipts By 4 . We can put many values like Transaction number, Purchase order, Sales order, Contract Number, Balance Forward Billing Number .

For a particular BU we have entered Match Receipts By 1 as" Transaction Number" and Match Receipts By 2 as "Purchase Order" .

If we specify multiple options like above is there a precedence level where transaction number will be used first followed by purchase order or it doesn't matter and both will be considered for automatch rule.