MT type 413 with same Debit and Credit postings

Hi Sap Experts,

we are using movement type 413 for sales order stock reservation posting .They are both posted in the FG Stock account.afterwords the same stock will use for delivery and PGI against the SO.

But the issue is while posting Movemnt type 413  in MIGO the FG Stock account not coming same.We require the below entry.

While doing MIGO. MT 413

(1)    Case Scenario: FG to be assigned to sales order stock and prevention from use other than against the respective SO.

Accounting entry

Stock a/c    Dr   50000 (SO + Item)      BSX

Stock a/c    Cr   50000                        BSX 

That means no accounting Impact while doing 413.Then the below normal entry will pass with Mov type 601.

(2)    Case scenario: PGI from sales order stock:

At this time accounting entry is:-

Cost of goods sold Dr

Stock a/c Cr   (Sales Order + item)

In Scenario (1) can we assign the same Gl account in OBYC. Please advice.

Thank you so much in advance.

Regards

Pulak