DAX - Need filtered table based on two separate rankings - help!

[philippa_f]

I have a table where products appear multiple times and I need to create a subset table that just has one record for each product, based on two different scores.

I need the record chosen to be that for the MAX of RankC, but if there are multiple records for the Product with the same value for Rank C, then instead I need whichever record has the MAX of RankA. If there are multiple records with equal value for RankA then I need to show an error. Sample data here:

PRODUCT	AMT	RANKA	RANKC	CATEGORY
15464	0.42667	2	3	Cat1
15464	1	3	17	Cat2
15503	0.8	5	7	Cat1
15538	0	2	2	Cat1
15538	0.2	2	2	Cat1
15550	0.1	7	37	Cat2
15550	0.4	6	37	Cat2
15550	0.6	6	37	Cat2

Can I do this easily with DAX? Do I use FILTER or CALCULATETABLE? Not sure where to start...

Thanks!

[v-easonf-msft]

Hi, @philippa_f 

Are RankA and RankC measures or calculated columns?

How do you want the error message to be displayed? Can you share your desired result in the table?

Best Regards,
Community Support Team _ Eason

[philippa_f]

Hi Eason

Thanks so much for responding. No, the Rank A and Rank C are not calculations, just variables in the source data. 

What I would need to see in the new table would look like this:

PRODUCT	AMT	RANK A	RANK C	CATEGORY	ERROR?
15464	1	3	17	CAT 1
15503	0.8	5	7	CAT2
15538					ERROR
15550	0.1	7	37	CAT2