"Value of Goods Movement is Negative" Error When Posting 122's Using PO

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Hi Gurus! Im trying to post a returns delivery(movement 122) using transaction MBR. But then I encounter the error message "Value of Goods Movement is Negative". Im looking at OSS notes but I can't see anything related to this. 

Additional Notes: 
1. Local and Foreign currency set to USD. 
2. Vendor is ERS. 
3. Im trying to post 122's with only small amounts of the material in the scheduling agreement example, 
GR qty was .196,632 M2, 122 qty is only 100 M2
4. I encounter a warning message, "Deficit of PU IR quantity 100,000 M2".

Can someone please help me identify what seems to be causing this error? THank you very much!

 

Reply：

Before you perform Return Delivery, you have to check 2 things.
1) If Invoice was already posted. If you already posted invoice, without the necessary configuration, you will have to cancel the invoice or do Credit Memo first. Then only you will be able to perform return delivery.
2) If you have already consumed the quantity for any particular reason. E.g. you received 100 on 01.01.2010, and you consumed 100 on 02.01.2010. Therefore today 25.01.2010 you wont be able to reverse it.
So find the consumption documents and cancel it first.

 

 今天遇到了这个问题，不过应该算是第三种。

最终发现原因是：由于汇率出现问题，导致122的Value远远大于库存中这颗材料的Value总值所产生，修正汇率后就okay了。

赶快记下~