I have a data set created in the Desktop which has been published to the PBI.com service and I have users creating their own reports using this data set. However, it appears that whenever they are using this live connection to the dataset, the Grouping feature is not available. For example, a simple pie chart showing sales by category - if a user selects two or more categories to be grouped, when they right mouse click the Group option does not appear. Is anyone else aware of this and if so is it a bug or is it standard behaviour? Thanks.