BIG PROBLEM / Negative stock altough not allowed in customizing

Hi all ;

We have a big problem related with negative stock even though disallowed in MM customizing.

The valuated stock of some materials are negative even though negative stocks are not allowed according to Customizing.

When we are making goods movement using bapi, system allowed negatice stock some materials. We check OSS note : “935755 - Negative stock even though it is not allowed in Customizing” . The negative stock was created due to a regular material document, so note solution is not efficient.

When you attempt to enter additional goods movements for this material, system chekcs storage location stocks and doesn’t allow negative stock.

SAP estimates the problem related with :

The duplicated posting entry has created a negative stock figure in

Productive Environment.

If two documents are posted with a very small time interval between

them, the second document can update the stock table before the first

document does and therefore the system doesnt post an error message.

There is no way to prevent this happening apart from allowing a sample

time between postings so that the database can be updated.

I would recommend you to follow the steps in the note 935755 to

fix this negative stock.

Sap respond like above info. Is there a recomendation about solution path...

Test data ******

Test data: ( Tcode: MB52-Material stock )

Plant: 1006

Storage location: *

Settings selection: Display Negative Stocks Only

Example material code;

A4003821

PM100004

PM100145

Test data: ( Tcode: MB51-Material documents )

Material : PM100145

Plant : 1006

Storage Location : YSRF

Posting Date : 01.10.2013 - 16.11.2013

Regards.

M.Ozgur Unal