Created a custom entity and have turned on business process flow via Solution explorer for this entity. However, not able to create a new Business Process Flow via the PowerApps panel as it is showing no database connected.
I was not able to create the Business Process Flow via the Flow/Business process flow option on the Power Apps maker page as shown in screen shots I had attached earlier. However, using the edit option for the model app (available under APPS) and using the App designer mode, I created the business process flows and selected the entity from there. Once I created the business process, it became visible under Flow/Business Processes I was not the only one who had this issue. Others did too but not all did. I know the Power Apps maker page is being updated quiet a bit to pull in some of the components building for model apps and this might be the reason that these changes may have not propagated to all tenants. Thanks for your reply.