If Autofilter Criteria doesn't return a field, how can I re-direct it to do something else

Hi,

I've got the following codes which filter for the "adj" in the "total" page and copy the results to the "sum" page. It then goes back to the "main" page where the instructions sit.
However, the "adj" field is not there all the time.
Would you know how can I get the macro to do the "copy and paste" if the "adj" field is there but when "adj" is unavailable; directs it back to the "main" page?
Thanks.


Sheets("total").Select
Cells.Select
Selection.AutoFilter
Selection.AutoFilter Field:=19, Criteria1:="=ADJ"

Range("W1").Select
Range(Selection, Selection.End(xlDown)).Select
Range(Selection, Selection.End(xlToRight)).Select
Selection.Copy

Sheets("sum").Select
Range("A1").Select
ActiveSheet.Paste

Sheets("main").Select
Range("A1").Select