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Backround: CTP scheduling can't reduce forecast consumtion if the accumulated on hand is negative before the planning time fence is ended. The sales order will jump to after next planned orders, if the demand forecast will get a accumulated negative stock before the time fence/leadtime. Even if we have on hand inventory!!!!

According to Microsoft product team the scenario is working based on current design logic. Please find here the explanation:

Objective (what the user is trying to achieve): the user wants to find the accurate first available ship delivery date for a sales order (requested ship date) for an item. This item has a demand forecast associated with it and it has available on-hand. When creating the sales order, the system should find the earliest ship date possible (in the case that there is on-hand available, it should take the on-hand).

Solution: the correct setup is to use ATP in the default order settings for the item (instead of CTP).
ATP (Available-To-Promise) considers the material availability for the product and assumes infinite capacity on the production side while Capable-To-Promise takes into consideration lead times, production routes and finite capacity to give an accurate delivery date (regardless of the on-hand of the item). It calculates the earliest date when it could be produced/purchased.

Expected CTP also to have sales order line being covered from the available on-hand and to have the demand forecast decreased (consumed) accordingly. But it doesn´t work that way.

The Solution for the moment: the correct setup according to Microsoft is to use ATP in the default order settings for the item (instead of CTP).
ATP (Available-To-Promise) considers the material availability for the product and assumes infinite capacity on the production side while Capable-To-Promise takes into consideration lead times, production routes and finite capacity to give an accurate delivery date (regardless of the on-hand of the item). It calculates the earliest date when it could be produced/purchased.

So Wote the CTP solutions are far from sufficient!!!
Category: Planning
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