Hi,

I have data in column A, B and C starting from row number 2.

Also, I have some data in column P and Q starting from row number 2.

The data in A and B TOGETHER constitute a Unique ID. Similarly data in
P and Q together constitute a Unique ID.

Now based on the data in P and Q I want to look up A and B and return
value from C in column R.

As of now, I use an inefficient way of building up a helper column in D
(D2 = A2 & B2) and S (S2 = P2 and Q2). Then in R2 I write the formula,
= =INDEX($C$2:$D$1000,MATCH(S2,$D$2:$D$1000,0),1)

Is there a better way of accomplishing the above (an array formula or
some mega formula which doesnt resort to inserting dummy columns etc)

Please guide me.

Regards,
Hari
India