Dear Mr. Doverman,
I ended up going a different route which works exactly as I wanted, and without any helper columns. Because we're all here to learn and share ideas, I thought you might find it interesting to see the solution I came up with as well. I used this array formula:
and added an iferror to repeat matching both cells in the next set of columns as such:
What it does is this:
Lookup value from cell 1 and 2 and match in columns A and B, if both match, then return corresponding value from column C, if they don't match, then lookup value from cell 1 and 2 in columns D and E, and if both match , then return corresponding value from column F etc.
If only value from cell 1 matches and cell 2 is empty, then the first corresponding value from column A is returned.
Thanks again for your help and I hope this is of any use for future reference to you.
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