This is an issue we're encountering with large datasets, where data cannot be exported in it's entirety from a table or matrix and is sampled for larger over 30k row limit. We're wanting to address two items.
Can a warning message be setup in the Power BI Service to warn users that exporting data over 30k rows will be sampled?
This is not currently setup in the service.
Can the row limit be increased or set based on user preference?
Right now our user group feels they're being misled because they don't know until they open the workbook and view the results that it's incomplete. A warning message enhancement would help. Better yet, allowing all the data to be exported would be the ideal function.