quality order and return order

Hi

We create a Product with item number 9026,

Tracking dimension group -> No

Storage dimension group -> just sit and warehouse

Item model group

            Warehouse management -> ON

Site -> site1

Warehouse -> Technical

Quarantine Warehouse -> QTech

We create a purchase order line as order1 with site site1 and warehouseTechnical:

Item number        QTY 

9026                     10

After receive items, created Quarantine Management document automatically, before change status to report as finished we send them for Quality order in our policy (we set it in Quality association)

In warehouse for item 9026

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 In the quality order we must be inspect 10 items (9026)

6 items -> test passed

4 items -> test failed

Now, we want send 6 items to Technical warehouse and 4 items must be reject into vendor,

How to could we reject 4 items in QTech as quarantine warehouse and send to vendor?