How to generate global forecast in Demand Management

Summary:

I have gone through the feature of global forecast introduced with 25B. (https://docs.oracle.com/en/cloud/saas/readiness/scm/25b/scp25b/25B-sc-planning-wn-f36753.htm#Access-Requirements).

This documentation focuses mostly on supply planning and how the forecast would be consumed. I would like to know how Demand Management can generate the global forecast. (Forecast at either item-customer or item- Demand Class levels).

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