Error in Goods Recipt Purchase Order

Question

Hi,
I am in t.code: MIGO_GR-- 3rd party sales order receive goods.
I was trying to do Migo_gr,  the OK check box became inactive and while saving i am getting the following message: "you have not flagged any items as OK".
please advice me to slove this issue.
what is the reason for becoming greyed out the OK check box.
Thanks
ANGKS

Answer 1

Since a third-party order involves a movement from the vendor direct to the customer, Inventory Management is not in any way affected. If you wish to document the movement in the system, however, you can create a goods receipt for the third-party order.
Prerequisites
You can only enter a goods receipt for a third-party order if the goods receipt indicator is set in the order item.
Features
Entering a Goods Receipt
You enter a goods receipt for a third-party order in the same way as a standard goods receipt for a purchase order with account assignment.
Results of the Goods Receipt
The goods receipt has the same effect as a goods receipt for a purchase order with account assignment:
No stock update is made, as the goods receipt is posted to consumption
The value of the purchase order is posted to a GR/IR clearing account for the purposes of Invoice Verification.
The goods receipt can be tracked in the PO history.