Storage location value in Tcode VA01

Question

Hello experts,
                       I have done the enhancement for 'VA01'. According to my requirement i have to give some values to storage location for a particular order type.
e.g if my order type is 'zwxl' my storage location should be '0001'.
i am writing the enhancement code in program name SAPFV45P in that in include FV45PF0V_VBAP-POSNR_FUELLEN.
the part of code is :
IF vbak-auart = 'ZWMF'.
    vbap-lgort = '0007'.
    ELSEIF
      vbak-auart = 'ZSDR'.
      vbap-lgort = '0001'.
but after the save i dont see my storage location in VA01 even if the order type is ZWMF or ZSDR.the storage location is blank there in VA01.
but if i write if vbak-auart = 'ZWLF'.
vbap-lgort = '0011'.
else.
vbap-lgort = '0004'.
endif.
for this if my order type is not ZWLF the value of the storage location appears in VA01 and that too 0004.
what i can see while debugging is if the order type is other than my requirement for which storage location comes MTCOR-RMARD EQ 'SAPCE'.
and if order type is amongst my requirement the value of MTCOR-RMARD is EQ 'X'.this why the field of storage location comes blank for my reuirement.
plz help.why this is so?
thanks n regards,
Ashmita Singh

Answer 1

thanks experts..Enhancement is working for all the order type except one..ZCRE
AFTER entering the order type n all a pop window appears to enter billing document,
then a information window 'The plant for item 000010 must be redetermined' occurs 
then in the form 'VBAP_KOPIEREN_VORBEREITEN'
after PERFORM (MODUL) IN PROGRAM SAPFV45C. VBAP-LGORT value becomes zero
then 'The plant for item 000011 must be redetermined'.
now value of vbap-lgort at this time before initialization is '0004'.
after PERFORM (MODUL) IN PROGRAM SAPFV45C.
value of vbap-lgort become '0004' again.
The plant for item 000020 must be redetermined
value of vbap-lgort is initial at this time.
after PERFORM (MODUL) IN PROGRAM SAPFV45C. value of vbap-lgort becomes initial again.
The plant for item 000021 must be redetermined
after this vbap-lgort is 0004 again.
PERFORM (MODUL) IN PROGRAM SAPFV45C. after this vbap-lgort = '0004'.
The batch number of item 000011 is cancelled
The batch number of item 000021 is cancelled.
plz help.this is for this order type only and for rest of the
order the enhancement is working fine.
for Itme 10 the storage location blank
then for Item 11 storage location is 0004
for item 20 storage location is blank again
and finaly for item no 21 storage location is 0004.
below is my enhancement code.
enhancement 1  zstorage_location.    "active version
This is to change the storage location
as per the order type
  if vbak-auart = 'ZWLF'.
    vbap-lgort = '0007'.
    elseif
      vbak-auart = 'ZSCR'.
      vbap-lgort = '0001'.
      elseif
        vbak-auart = 'ZRAW'.
        vbap-lgort = '0001'.
        elseif
          vbak-auart = 'ZORD'.
          vbap-lgort = '0004'.
          elseif
            vbak-auart = 'ZLCI'.
            vbap-lgort = '0001'.
            elseif
              vbak-auart = 'ZEXP'.
              vbap-lgort = '0010'.
              elseif
                vbak-auart = 'ZCRE'.
                vbap-lgort = '0008'.
endif.