Configuring a dataset scheduled refresh
It is very important to have not only accurate but also timely data for your reports. Looking at a sales forecast report for last year, or even last week's inventory report, may lead you to making the wrong business decisions. To keep your imported Power BI report data up to date, you will have to refresh the data by pulling data from the data source. You can manually refresh the data of a dataset, but this can be inconvenient, to say the least. An easier way is to have the Power BI service schedule the refresh for you.
To schedule a refresh, go to the workspace you published the report to and select the Datasets + dataflows option from the menu, then hover your mouse over the dataset name. When you do that, the refresh now and schedule refresh icons will appear; select the schedule refresh icon.
This will open the dataset settings page, where you can then set up scheduled refreshes.