In AX 2012, when run Master Schedule for Specific Finished Good, system considers “On-Hand” and “Inventory Transactions” only for the finished good item which is mentioned in the Master Schedule Filter.
Issue:
system does not consider “On-Hand” and “Inventory Transactions” for Raw materials (BOM Lines).
Planned Purchase Order is created as Per Planned Production Order Qty (Demand)
Look at the item pegging for the item, it is creating new for a reason, so then look at the net requirements and the flow. Also look at your warehouse/site configuration and then the type of fences you have and why, for example the positive time fence in relation to the stock and the demand date.