I need to create an app for using with Avaya Cloud Office. According to the documentation and when I create the app, I can only do this if my app is set up with "Auth Code" authentication, even though my app is only for members of my own organisation to use. I have created a working "private" app in the RingCentral Sandbox environment using password flow and my CRM, which I wrote, programmatically authenticates (no need for a physical login page or real person interaction; it is all automatic). This works perfectly using Password Flow.
However for my app to be graduated and migrated for use with Avaya Cloud Office I am only allowed to use Auth Code authentication (even though my app is private and only for members of my organisation to use) but from everything I have read and learnt "Auth Code" only works with a physical login page which requires a real person to physically interact and enter credentials into the login page. I need it all to work programmatically like it does with Password Flow. Please can anyone tell me if there is a way for an app using Auth Code to authenticate programmatically in a similar way that Password Flow does?
Or alternatively is it possible for me to simply use my private app which uses Password Flow authentication in Avaya Cloud Office (as it is only for members of my own organisation to use )?
Thank you very much for any help. I really appreciate it.