Microsoft Social Login API Does Not Recognize Already Signed Up Social Login Users

Hi, I am working on implementing an app with Microsoft Work social login. I was using “Microsoft Graph” Plugin. but this plugin does not support “prompt=login” parameter in the Redirect URL. So, I implemented Microsoft Social Login API.
When I try to log in into already existing bubble accounts (already signed up using Microsoft Graph Plugin ), it throws an error “User Already Exists”. Seems like the API is not recognizing already existing accounts that were signed up using social login.

Do we have a workaround for this? Any suggestions would be appreciated.
Thanks!

If you choose to create your own user-agent flow… the previously created user that already exist will return this error because they was created using another auth (plugin in this case).