Gist Overview This GAS sample is for retrieving access token to use OneDrive APIs using Google Apps Script. In this script, the authorization code is automatically retrieved. Demo Usage In order to use this, both accounts of Google and OneDrive (MSN) are required. Google side Copy and paste the sample script to your script editor. You can use the standalone script for this. Deploy Web Apps. On the Script Editor File -> Manage Versions -> Save New Version Publish -> Deploy as Web App -> At Execute the app as, select “your account” -> At Who has access to the app, select “Only myself” -> Click “Deploy” -> Copy URL of “latest code” (This is important!