Change and Recheck Sales Order

Use

If you have already executed a successful CTP check and have saved the sales order, and you then change it again later, the system has to carry out another CTP check. However, the already existing receipt elements may already be obsolete or may no longer be suitable for the changed sales order. This can lead to problems (especially if the customer’s desired date/time is brought forward or there is an increase in the desired quantity ) if you have specified First Availability Check, Then Production in the ATP Check Instructions . If the desired date/time is brought forward, for example, the system cannot confirm it because the availability check is carried out against the already existing (now delayed) receipt elements.

If you use the Recreation of Receipt Elements function, the system ignores the original receipt elements in the renewed CTP check in the sales order and replaces them by new, more suitable ones.

The recreation of receipt elements in the event of a renewed CTP check due to a change in an existing sales order affords the following advantages:

In the event of a change in the desired date/time (for example, if it is brought forward), the system creates a new receipt element suitable for the desired date/time and can thus confirm the new date/time (provided that sufficient free capacity exists). The superfluous receipt element is deleted.
In the event of an increase in the desired quantity in the sales order, the system creates a new receipt element amounting to the new order quantity. The superfluous receipt element is deleted.

Integration

You can use the Recreation of Receipt Elements function in make-to-order and make-to-stock production .

Prerequisites

You have set the Recreate Receipt Elements indicator in the check instructions .
You have specified a Horizon for Recreating Receipt Elements on the ATP tab page in the product master.
The receipt elements have a status that allows deletion. If the receipt elements are fixed ( PP-fixed , input-fixed or activity-fixed ), the system cannot delete the them. In this case, the CTP check must take these fixed receipt elements into account because they cannot be replaced by new ones.
In order to be able to use the Recreation of Receipt Elements function also in connection with make-to-stock production strategies , in the case of make-to-stock production , the following prerequisites must additionally be satisfied:
- You must use fixed pegging , in order to be able to fix the assignment of the receipt element to the customer requirement made by the CTP check. For this purpose, you must have selected the Creation of Fixed Pegging-Relationships option in the Fix. Pegging in CTP/ATP field and entered the class /SAPAPO/CL_RRP_CTP in the ABAP Class for CTP Processes field in the PP Planning Procedure .
- In order that the system can create a fixed pegging relationship between a receipt element and the assigned customer requirement, you must have selected the Characteristic Evaluation option in the check mode in the Production Type field.
- The receipt element must be assigned to just one sales order item. You can achieve this by setting the lot-for-lot quantity for the product to be checked. In this case, the system creates just one receipt element and assigns it to the causal (pegged) requirement.

Features

Recreating Receipt Elements

When changes are made to a sales order, the CTP check does not take into account the capacity or quantites of the existing receipt elements that are assigned to the account of the checked sales order item or that have a fixed pegging relationship to the sales order item. Instead, the system creates new more suitable receipt elements for the changed sales order.

When you save the check, the system adopts the new receipt elements and deletes the previous receipt elements. If you reject the check, the system deletes the new receipt elements and leaves the previous receipt elements as they were.

The resources are temporarily overloaded.