D3: =INDEX(DETAILED_PRODUCT_TYPE,MATCH(A3&C3,OBLIGATION_NUMBER&BORROWER,0)) committed with Ctrl-Shift-Enter
This is an array formula and will return the values expected/required. However, it will be very slow because the Named Ranges refer to entire columns.
You could improve performance by specifying a range rather than a full column. Better still, use a Dynamic Named Range. See the updated example file.
Regards, TMS
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