Using OAuth Authentication
OAuth requires the authenticating user to interact with Smartsheet using the browser. The adapter facilitates this in various ways as described below.
Custom Credentials
You will need to register an app to obtain the OAuthClientId and OAuthClientSecret.
Headless Machines
In the headless OAuth flow, users need to authenticate via a browser on another machine. You will need to create a custom OAuth app.
Creating a Custom OAuth App
See Creating a Custom OAuth App for a procedure.