Download, Launch, and Param functions in PowerApps

Downloads or launches a webpage or an app with parameters.


The Download function downloads a file from the web to the local device. The user is prompted for a location to save the file. Download returns the location where the file was stored locally as a string.

The Launch function launches a webpage or an app. Optionally, this function can pass parameters to the app.

The Param function retrieves a parameter passed to the app when it was launched. If the named parameter wasn't passed, Param returns blank.


Download( Address )

  • Address - Required. The address of a web resource to download.

Launch( Address [, ParameterName1, ParameterValue1, ... ] )

  • Address - Required. The address of a webpage or the ID of an app to launch.
  • ParameterName(s) - Optional. Parameter name.
  • ParameterValue(s) - Optional. Corresponding parameter values to pass to the app or the webpage.

Param( ParameterName )

  • ParameterName - Required. The name of the parameter passed to the app.