This post is based in a true use case. The customer followed the market share trends, to see how it compared to the rest, as a manufacturer, and at a brand level.
So far so good. But coming from excel they were used to build charts any way they saw fit, so they liked to see on the same chart their own year-on-year growth in general as a manufacturer, then in different distribution channels, then specifically the growth of their two main brands, and then the growth on different regions. That alone was my first challenge. But then they said that that they would like to know how others were doing on the tooltip. But of course, when looking at a manufacturer-level value, they would like to see their value together with that for other manufacturers, and when looking at a brand level then wanted to see it with all the other brands. I added to the mix that it would be nice to see highlighted their own value in the tooltip of course.
