Stock Posting List - Negative Value when Different Currency in PO

Question

Hi experts,
We would like your help on the following scenario.
A Purchase Goods Receipt PO and a Purchase Invoice are added in SAP 9.0, on the same date, in a different currency from the system's currency; system's is Euro and Purchase documents are added in JPY (Japanese xen), i.e. 300 JPY. When checking the "Stock Posting List" report for a number of goods that were purchased with the above documents, the report presents the line of the Goods Receipt PO with the value of 270 JPY, and the line of the Purchase Invoice with  a negative value, i.e.-15 Euro.
Has anyone faced the same issue?
Thank you in advance.
Kind Regards,
Vassilis Korolis

Answer 1

Both queries have the default value of  "Only Posted Values for Navigation".
As I was looking at this, I did realize the following though.
Remember, I mentioned that my zcurrency_mand field has a Reference Characteristic of 0currency.
Query 1:  The key figure that is being converted is tied to 0currency in the back end. (this is the query that works).
Query 2:  The key figure that is being converted is tied to 0inv_curr in the back end.
Both of the currency conversions are using zcurrency_mand.  Should query 2 be using a new variable similar to zcurrency_mand, but with a Reference Characteristic of 0inv_curr?
If the answer is yes, I tried creating ZINV_CURR_MAND with Reference Characteristic of 0inv_curr, but am getting the following error when I try to save the changes to Query 2
[E117(BRAIN)] Errors: Variable ZINV_CURR_MAND2 is not permitted for the target currency. 
Thanks,
Jennifer