IDR Invoice line recognition logic for PO Matched invoices

Summary:

Hi All,

Is there any documentation available that describes the logic of IDR recognizing invoice lines for PO matched invoice?

We found an issue where IDR recognized the PO number on the image and matched the invoice to the PO , with the exception of pricing on line 3.   IDR applied invoice lines 2 and 3 to PO line 2.  So it’s suspending line 2 and ignoring line 3 (please see the screenshots below).  Looks like IDR matched on price, then moved on.  How does the catalog, or item# on the invoice NOT play into the logic. 

PO line screenshot

Invoice Line screenshot- Line 2 and Line 3 are matched to PO line 3