Consequences of Changing Production Orders 

Use

The standard strategy is as follows:

·        Changes in the basic criteria (material or size) will completely deallocate the corresponding assignments.

·        Changes to date-sensitive data by more than x days (for example, postponing the expected goods receipt date) will completely deallocate the corresponding assignments if it would cause the planned goods receipt date to move outside the safety stock window. Alternatively, you can activate the acceptance check flag: if the acceptance test fails, the affected (or all) requirements will be deallocated. For example, if a production goods receipt date is postponed from June 10 to June 20 and the acceptance test flag is set to E (error), then all assigned sales order schedule lines with a confirmed date prior to June 20 will be deallocated.

·        Changes to storage location or stock category can lead to a deallocation.

·        Decreasing the ordered quantity will result in a deallocation. You can configure the system to determine whether all related assignments should be deallocated or only assignments up to the reduced quantity (in total). The latest requirement will be the first one to be deallocated. Alternatively, you can assign a sorting rule to give the certain assignments a priority (as in ARun sorting); in this case, you can have the system deallocate the lowest priority assignments first.

·        When you deallocate a production order, all allocated sales orders will be locked. If one sales order cannot be locked, the system generates an error message. The production order can only be processed when the locked sales order is unlocked. If the quantity is reduced and a sales order cannot be locked, the next sales order will be deallocated.

·        When you mark a production order as technically complete, assignments for production order are deallocated.

Integration

Plant-Dependent Rule

In ARun Customizing for PP handling, you can select the following plant-dependent rules:

·        Logging rule

This determines the log file rule to be used for actions taken by the system during PO handling. You can configure the log file rule in Customizing for Log File Rules (IMG path: AFS Allocation Run ® ARun Detail ® Log ® Logfile Rule.

·        Deallocation rule

This determines the circumstances under which deallocation may or may not be permitted. (See the description of Deallocation rule below.)

·        Sort rule

This determines the order in which requirements are to be deallocated, if deallocation is needed. For example, deallocate the least important orders first, or deallocate by ascending sales order number, and so on. (See the description of Sort rule below.)

Deallocation Rule

In ARun Customizing for PP Handling, you can define deallocation rules to be used when production orders are changed. If you want to prevent critical data from being changed, you could lock production orders before scheduled delivery so that no changes can be made.

On the other hand, if you allow changes but want to send a warning whenever someone changes a production order quantity, you can choose Warning before deallocation in the check fields.

In conjunction with the Quantity field, the Complete sched. field determines whether the entire quantity for that schedule line is automatically deallocated.

For example, if you decrease an assembly SKU quantity from 100 to 75 pieces, then:

·         If the flag is off, 25 pieces (header assembly SKU) will be deallocated

·         If the flag is on, the entire 100 pieces (header assembly SKU) are deallocated

For each of the fields on the screen, you can select from the following actions:

·        Change not permitted

·        Warning message before deallocation

·        Deallocation without issuing a warning message

·        No action

If you select No action for any field, then the system will allow the change and take no other action. For example, if you choose No action for Storage location, then if a buyer changes the storage location in a production order for a given material, the system simply handles the production order as it normally would.

The DCI, Deletion indicator, and Quantity fields do not have a No action entry. These fields are critical to production order handling and you must decide how you want the system to react.

Sort Rule

In ARun Customizing for PP Handling, you can define how the system sorts requirements, stock, and other objects when performing deallocations.

For example, if you want to sort first by MRP status, then by delivery priority, then by schedule line confirmed date, you would make the following entries:

Sort field	Priority	Sort descending
LPRIO	1	X
EDATU	2

By selecting Sort descending flag for the delivery priority (LPRIO), the system deallocates the least important orders first.