Freight charges cannot be changed in PO

Question

Hi Masters
         I have created a import PO for a vendor X and freight charges in PO for the vendor Y for about 14000 JPY. MIGO and MIRO(delivery costs) has been done later.After that it is found that the freight charges is wrongly mentioned in the PO.The actual freight cost is 1300 JPY.
     So I cancelled the MIGO document and MIRO document to change the freight charge in PO.Although I have cancelled the both i cannot change the Freight charge in the PO.
How to solve this?
Regards
Mohan

Answer 1

Refer the OSS Note ::  457511
Is it possible to change or add delivery costs in the purchase order after a goods receipt has been executed?
Answer:
No, this should not be possible. The system generates error message V1631 'You cannot enter new delivery costs' (V1631). Important: If your system does not behave in the manner described, this is an error that can be corrected using Notes 187694 and 196884. This affects the earlier Support Packages of Release 31I, 40B, 45B and 46B (you will find more detailed information in the two notes mentioned).
For the changeability of delivery costs after an invoice receipt, see Note 651798 and Note 720191, or Note 549408.
The existence of held delivery cost invoice documents must be checked manually and has to be considered.
Delivery costs must not be entered again or changed if all follow-on documents were cancelled for the purchase order item, unless there were no delivery costs for the posted documents. Otherwise there is no guarantee that continued processing will run without errors.
If you change the Customizing for existing delivery costs, the system does not read this either in a purchase order with an existing goods receipt. The new Customizing settings only take effect when you create a new purchase order.
Of course, the condition values of time-dependent conditions can still be changed even after a goods receipt has occurred. See question four for information on how to change the master condition values.
Please note:
The restrictions on changing delivery costs as described above have only been developed over time. This is not due to changed functions, rather previously we did not know that making changes could sometimes lead to subsequent irreparable errors.
In particular, when you post invoices for delivery costs, the logic considers delivery costs that have already been posted (even if they have since been cancelled) AND the data for delivery costs from the database (as displayed in the purchase order). During processing, you have no way of knowing if this information is no longer compatible, nor any way to discover the cause, and this leads to incorrect processing.
You should therefore proceed as follows:
If delivery costs were entered incorrectly, you must cancel all related purchase order items (reverse all documents) and enter a new purchase order item with the correct delivery costs. Otherwise, there is no guarantee that further processing will be correct.
If your delivery costs are changed regularly, you should use master conditions.
Additional note:
If you have manually changed or maintained conditions in the purchase order, under certain Customizing settings when you run a new price determination after a goods receipt, a condition may be determined twice. For more information, see Note 456691, question 26.