Configuration needed for loading external project and task forecasting

Summary:

I load external forecast for project and task and it is loaded successfully and is visible in Plan inputs > Supplies and Demands view:

Then I created a Supply Plan with this external forecast as Demand Schedule:

But supply plan planned orders are not project task related and forecast is consume like it doesn't have project and task values. What am I missing in the configuration so planned orders are grouped by project and task?

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