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Documentation > MAC-PAC Reference Library > Manufacturing > Just-in-Time > Key Concepts and Procedures > Availability and Demand Calculations > Supply

Supply

There are four sources of supply:

·     Manufacturing orders that are not closed.

·     Purchase orders that are not closed or shipped directly to the distribution warehouse.

·     Flow authorizations with a status of firmed or planned.

·     Transfer orders that are not closed or supplied to distribution inventory.