[starting from version: 2.3]
It is triggered for "microsoft analysis services" and "api" data source types:
olapstructureloaded is triggered after the OLAP structure is loaded.To track when the structure starts loading, use loadingolapstructure. To track any errors, use olapstructureerror.
pivot.on('olapstructureloaded', function () {
alert('Olap structure loaded!');
});Try on JSFiddle.