The Password Reset Service is used to reset the password for an app user when using the user authentication service.
The basic concept is:
The UI for the password reset process has to be implemented in your app. The easiest way is to use Visual Coding and use the Visual Coding blocks Cloud.Pwd.Start and Cloud.Pwd.Finish. Read more about implementing a password reset service here.
Please note that you should never use the password reset service when using fully encrypted data. Read more about data encryption here.