Hi

I posted this question a couple of weeks ago but could not work out how to
use the response or it did not work, so I guess I may have not explained it
well enough.

I have a list of Items, all coded, so column A is the codes and column B is
the item description.

I have a second list of coded items where column C is the code and column D
is the item description.

The two sets of columns do not have to match, some items appear on one set
but not the other, my problem is that the codes, if they appear need to have
the exact same item description.

Each column is several thousand cells long..
Is there some way I can search the four columns and tell when a code
appearing in A and C has a different Item description.