This feature is very usefull and I love it.
It came since last year and it's a powerful tool to help scheduling and optimize the load of the server.
Unfortunately, I tried to use it this afternoon, and on an very solicited instance, if there is too much workflowTask created for the day, the page cannot display the informations (an error occured, saying the result of the queryDef cannot be processed). We can display the heatmap in the morning, but not anymore at a certain moment in the afternoon, and not for previous days.
But It may have been changed and maybe a build upgrade correct this ? We will see (the instance have to be upgraded soon
Anyway, it's a very cool tool !
Thanks @Sukrity_Wadhwa for sharing this.
Cedric