Paul - I suspect you might have a date issue - is your Purchase Order Expected Receipt Date equal to or less than the Sales line Shipment Date? (assuming you have the item demand coming from a sales order). If your Purchase Order date is equal to or less than the shipment date you should not be getting the results you are seeing in the planning worksheet. You can purchase a Prod. Order item at any time, but the expected receipt date on the Purchase Order is key - if it is beyond the shipment date planning will tell you to create a new Prod. Oder and cancel the Purchase Order or if you wanted the system to suggest moving in the Purchase Order in a Lot-for-Lot setup you would populate the Rescheduling time to include the future Purchase Order which instead of telling you to create a new Prod. Order would suggest a change message on your existing Purchase Order. So in the end it is how planning is setup - which is always an interesting topic.Best Regards
Paul - What I was trying to point out is that while setting the PO line Planning Flexibility to NONE did work you would not need to do that. All has to do with how the Planning Parameters are setup on the item which can be 'interesting' sometimes. I have not had any customer planning issues when an item is a Prod. Order, and a Purchase Order was created instead with the Planning worksheet.
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