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@htarahi,
It is possible to add some extra content to the toolTip using contentFormatter property as shown in the code-snippet below,
contentFormatter: function (e) { var content = " "; for (var i = 0; i < e.entries.length; i++) { content += CanvasJS.formatDate(e.entries[i].dataPoint.x, "DD MMM YY") + " : " + "<strong>" + e.entries[i].dataPoint.y + "</strong>" + " " + e.entries[i].dataPoint.extraContent; content += "<br/>"; } return content; }
Kindly take a look at this JSFiddle for an example on rendering a chart with additional content on the toolTip.
— Adithya Menon Team CanvasJS