Table "Order Tracking Entry" is used internally as a buffer for order tracking functionality, it does not actually store any tracking information. If there is a link between a sales order and a manufacturing order, the reference will reside in the "Reservation Entry" table. But tracking must be enabled explicitly for each item you want to track - it is items that are in fact tracked, not orders. Tracking is enabled in the item card: If tracking is switched on, the planning engine will create a pair of reservation entries for supply and demand.
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