MBST finds document in VBFA and accesses LIKP for previous year document

Question

Hi all,
I don't know if this is the right place to post. As an ABAP developer, I'll put my query here :
Scenario : In MBST, for a particular document type and year 2012, it displays error and says "No Authorization for shipping point X", though the document is posted againt another plant/shipping point Y. This material was posted for X in 2011. And we are not able to determine why MBST is picking up 2011 record.
Analsysis :
On debugging, we found -
There is an FM "WS_FIND_ORIGINATE_DOCUMENT" called in program LMBDFU01.
This FM is called on pressing enter on the initial screen in MBST i,e before we press Save.
Here there is a query to where it finds the document in VBFA :
SELECT * FROM VBFA APPENDING TABLE XVBFA
                         WHERE     VBELN   = MBVBFA-MBLNR
                         AND     ( VBTYP_V = 'J' OR VBTYP_V = 'T' )
                         AND       ERDAT LIKE BELJAHR
                         AND       VBTYP_N = 'i'.
Here it doesnt find document for 2012, so it searches for 2011 (subtracts 1 from the year passed in MBST).
It finds a document for 2011 in VBFA and picks up the corresponding VBELV and passes it into VBELN in LIKP and hence fetches the previous year record and plant and authorizes the user against it.
In ideal condition, there is no document fetched for any year from VBFA and no LIKP is accessed. Any idea on why there could be a document present in VBFA for this document ? And how I can prevent from selecting this record as this is standard.
Thanks and Regards
         Vivek

Answer 1

Hi,
Thanks for your reply,
Yes we have migrated on 1.4.2009 and test migration have been performed .
But my client is to close books of accounts so it is having the said requirement of vendor to vendor transffer,kindly suggest me other alternative
Regards
vijay