Is there any benefit for a hotel industry project to do have the "Manage Forecast"?

Summary:

I have a project that is just having the Project Costing as a scope. They do not have the Billing, they just monitoring the project cost and a budget. Labor Cost is out of scope. they just monitor the CAPEX Cost mainly. I am thinking any benefits of a manage forecast.. Is there any benefit for them to use the Manage Forecast functionality?

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