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  Manual Changes to an Order in SAP R/3

Use

You can plan an assembly and its interchangeable components in SAP APO based on product interchangeability master data (InC master data) in SAP APO, and process the in-house production orders for the assembly in SAP R/3. (In this case, you can only transfer in-house production orders with single substitutions to SAP R/3.) In SAP R/3, you can make various manual changes to in-house production orders with interchangeable components. For example, you can change the receipt quantity or the availability date/time.

For these changes, SAP R/3 does not take account of the product interchangeability master data in SAP APO. In SAP R/3, for example, if you reschedule an in-house production order containing interchangeable components to another date/time, the dependent requirement dates/times might also be shifted. However, SAP R/3 does not check if a component is valid at the new date/time. If a component is discontinued at the new date/time, SAP R/3 does not substitute the component with a valid successor component.

Features

SAP R/3 distinguishes between changes that involve the reading of master data, and changes where master data is not read.

  • In the case of changes that involve the reading of the bill of material (BOM), the system adopts the components required in the BOM into the in-house production order again. Any substitute items in the order disappear.

  • In the case of changes where the BOM is not read, the components in the order are retained and SAP R/3 adjusts the quantities or dates/times of the dependent requirements in accordance with the change.

For a manufacturing order, changes that do not involve the BOM being read include the changing of the receipt quantity. After a change to the receipt quantity, the system adjusts the dependent requirements of a manufacturing order. For a planned order, the system only adjusts the receipt quantity if the components in the planned order are fixed. If the components in a planned order are not fixed, the system reexplodes the bill of material.

Adjustment of the dependent requirements after an increase in the receipt quantity

SAP R/3 adds up the quantity of the original item and the quantity of the substitute item and proportionally adjusts this total quantity. Therefore, if the receipt quantity is doubled, SAP R/3 doubles the total quantity. The effects on the original item and the substitute item are different for the planned order and manufacturing order, as follows:

  • Planned order

    In the case of a planned order, SAP R/3 increases the quantity of the substitute item to achieve the new total quantity.

  • Manufacturing order

    In the case of a manufacturing order, SAP R/3 sets the quantity of the original item to the new total quantity. SAP R/3 sets the quantity of the substitute item to zero.

    Note Note

    SAP R/3 always interprets an original item as an item for a predecessor component and a substitute item as an item for a successor component, irrespective of the actual relationship type in SAP APO. For more information, see Adjustment of Dependent Requirements for Full Interchangeability .

    End of the note.
Adjustment of the dependent requirements after a reduction in the receipt quantity

  • Planned order

    The adjustment only takes place if the components from the planned order are fixed (see above). First, the system reduces the quantity of the successor item. If the successor item is reduced to zero, and the required reduction of the dependent requirements has not yet been achieved, the system reduces the quantity of the original item.

  • Manufacturing order

    The system adjusts the dependent requirements just as when increasing the receipt quantity of a manufacturing order. Therefore, the system adds up the quantities of the original item and the successor item and reduces this total quantity in proportion to the receipt quantity. The system sets the quantity of the original item to this new total quantity, and the quantity of the successor item to zero.

Manually changing the component quantity

In a manufacturing order, you can only change the quantity of the original component. In a planned order, you cannot change the component quantities.

Activities

To check the availability of the components in an in-house production order after an order change, you can perform an ATP check for the order in SAP R/3. The ATP check does not take account of the product interchangeability master data in SAP APO.