When i do receipts ( Incoming ) for product A, lets say 100 pieces. On done, In quants it produce :

product            quantity                 location
------------------------------------------------------------------------------------
product A            100.00                 WH/stock     ------> ( this is right . )

But when i do delivery ( outgoing) for product A, lets say 50 pieces. On done , In quants it produce two records:

product                  quantity                             location
-------------------------------------------------------------------------------------
product A                -50.00                              WH/stock        ------> ( Why it create this one? )
product A                 50.00 Partner                Locations/Customers

As a results in current inventory evaluation im getting

Stock move                               Product Quantity
---------------------------------------------------------------------------------------
Suppliers > Stock                       100.00
Stock > Customers                         0.00 -----------> (This should be -50.00)
---------------------------------------------------------------------------------------
                                              total 100.00 -----------> (This should be 50.00)

But when i delete that ( product A -50.00 WH/stock ) record from quants, then im getting current inventory evaluation correctly

I don't know what i'm doing wrong here, why it is producing two records on delivery of a product in quants? if i should stop quants from creating two records on deliveries, how is it possible?

If quants producing two records (WH/stock and Partner Locations/Customers) on delivery is right behavior of odoo. then how should i get current inventory evaluation right?

Please help me...