A couple of suggestions:
1. Create a drop down Scenario parameter with only Forecast Scenarios instead of using WF POV for the CV. This will only give them the option for Forecast Scenarios.
2. Ensure all Workflows are locked for Actuals for all past and future periods and only unlock for the current Actual period. Still has the opportunity to load to Actual, but if Workflows are locked for Actuals for future periods, you should get an error that Forecast is loading to locked periods.
Do your Workflow hierarchies differentiate between Scenario Types? Are you using Suffix for Varying Workflow by Scenario Types? If so, the Forecast Workflows should have no reference to any Actual Scenario in the Workflow Pov. The only Scenarios available for Forecast Workflows would be the Scenarios that have a Scenario Type of Forecast. The default would be a Forecast Scenario.
