Have you ever thought that it might be useful to connect a Google Apps Script to your ServiceNow instance? Perhaps you’d like a new way to quickly download a list of configuration items from your change management database to a sheet, or you’d like to upload a selected range of cells from a sheet as new records in SNOW, one record per row?

This guide is focused more on the coding than how to configure your identity provider and ServiceNow.

Source: API Calls to ServiceNow from Google Apps Script with OAuth