coloring in Charts

Max, for charting it is actually better to have N/A, otherwise, if you put data labels into the chart, it will show zero when there is no column. With N/A the chart will be cleaner. Also, the N/A is a "natural" result of the formula if there is no value found for the criteria. Trying to error-trap it and exchange the N/A for a 0 would be a waaaay much longer formula. Like this:

=if(isna(INDEX('Channel Monthwise'!$C$3:$C$14,MATCH($A2&B$1,INDEX('Channel Monthwise'!$A$3:$A$14&'Channel Monthwise'!$B$3:$B$14,0),0))),0,INDEX('Channel Monthwise'!$C$3:$C$14,MATCH($A2&B$1,INDEX('Channel Monthwise'!$A$3:$A$14&'Channel Monthwise'!$B$3:$B$14,0),0)))

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