Hello,
Looking for some ideas on how to refresh historical data in a Powerbi Dashboard. Currently the dashboard is refreshed each month, but I am looking to build out a solution to display historical data for previous months data.
The historical data files are in excel sheets, spread across multple folders. Each file is a different month. I am able to add the main folder and filter the list to just the files containing the historical data using power query.
I looked at using custom parameters to update the file name which would allow the data to be refreshed without going through transform. But I need to find a solution that allows the end user to filter between months when the report is published.
I don't want to merge the data as each file(25mb) contains rows of data that has many lines which are duplicated over each month with thousands of additional new lines added.
But I am not sure how to create a relationship between the parameter and a filter/slicer to enable my users to cycle between reports, if that is at all possible.
Thanks in advance
