Notifications and Subscritions (server side to client not signalR)

Hi, I am very excited to use Hangfire, I am porting an existing project over to see feasibility. I would like to get this done without SignalR (since some hosting companies are blocking

In a simple document approval scenario I’ve
* Purchase approvers and
* Analysts who create the purchase requests/documents

  1. How do I invoke a change state to move/transition the document states
  2. And when the document is approved how can I notify a target group or individual users - so that users can see those items in their inbox when they login.

Is there a way to notify users of document approved and adding it to their inbox so they see it when they login