I would like to know if it is possible to highlight, in some way, a certain date range on a chart that displays, for example, the sales of a product for all days of a month. I am looking to somehow highlight all the values for the days (range) where there was a special promotion for that product.
In the Background Color or Line Style property of the Expression in the line chart you can change the line characteristics to highlight it. For example, in the line style property you could put
=if(Promotion='Y','<w4>')
Line Stype <w4> will make the line wider when there is a promotion.
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