Message M8 321 Document contains same order item more than once

Question

Hi,
i process incoming invoices by means of bapi_incominginvoice_create/park
The source data is a file.
The problem arises when i process the file containing the same order item several times
in different invoices.
when the code does:
  PERFORM importing_data_check       TABLES    itemdata
                                               accountingdata
                                               taxdata
                                               withtaxdata
                                               vendoritemsplitdata
                                               glaccountdata
                                               materialdata
                                     USING     headerdata
                                               addressdata
                                               c_rbstat_posted
                                     CHANGING  return[]
                                               f_subrc.
precisely in:
*----- Prefetch PO items ---------------------------------------------*
  LOOP AT t_itemdata INTO s_itemdata.
*----- Check double PO/Item ------------------------------------------*
    f_loop_doublecheck = f_loop_doublecheck + 1.
    LOOP AT t_itemdata FROM f_loop_doublecheck
                       WHERE po_number    = s_itemdata-po_number
                        AND  po_item      = s_itemdata-po_item
                        AND  REF_DOC_YEAR = s_itemdata-REF_DOC_YEAR
                        AND  REF_DOC      = s_itemdata-REF_DOC
                        AND  REF_DOC_IT   = s_itemdata-REF_DOC_IT
                        AND  SHEET_NO     = s_itemdata-SHEET_NO
                        AND  SHEET_ITEM   = s_itemdata-SHEET_ITEM
                        AND  COND_TYPE    = s_itemdata-COND_TYPE
                        AND  COND_ST_NO   = s_itemdata-COND_ST_NO
                        AND  COND_COUNT   = s_itemdata-COND_COUNT
                        AND  FREIGHT_VEN  = s_itemdata-FREIGHT_VEN
                        AND  VALUATION_TYPE = s_itemdata-VALUATION_TYPE.
        e_subrc = 8.
        PERFORM bapireturn_fill USING  'M8'
                                       'E'
                                       '321'
                                       s_itemdata-po_number
                                       s_itemdata-po_item
                                       space
                                       space
                              CHANGING te_return.
        EXIT.
    ENDLOOP.
    IF e_subrc = 8.
      EXIT.
    ENDIF.
i get this message M8 321.
Can i process several invoices containning the same order item in the same execution of the file?
if so, how?
warning: i´ve already read this solution
(belonging to Ram Manohar Tiwari, here http://www.rmtiwari.com )
*   The following coding is to solve the problem
*   mentioned in OSS Note 518338.
*   Same PO item within several invoice items.
SORT I_ITEM BY PO_NUMBER PO_ITEM.
LOOP AT I_ITEM.
  ON CHANGE OF I_ITEM-PO_NUMBER OR I_ITEM-PO_ITEM.
    W_COUNTER = 1.
    LOOP AT I_ITEM WHERE PO_NUMBER = I_ITEM-PO_NUMBER
                     AND PO_ITEM   = I_ITEM-PO_ITEM.
      IF W_COUNTER EQ 1.
        I_ACCOUNTINGDATA-SERIAL_NO = '01'.
        I_ACCOUNTINGDATA-XUNPL     = ' '.
      ELSE.
        I_ACCOUNTINGDATA-SERIAL_NO = ' '.
        I_ACCOUNTINGDATA-XUNPL     = 'X'.
      ENDIF.
      MODIFY I_ACCOUNTINGDATA
       TRANSPORTING SERIAL_NO XUNPL
      WHERE INVOICE_DOC_ITEM = I_ITEM-INVOICE_DOC_ITEM.
      W_COUNTER = W_COUNTER + 1.
    ENDLOOP.
*     To solve the repetition of PO item in subsequent invoices.
  ELSEIF SY-TABIX EQ 1.
    W_COUNTER = 1.
    LOOP AT I_ITEM WHERE PO_NUMBER = I_ITEM-PO_NUMBER
                     AND PO_ITEM   = I_ITEM-PO_ITEM.
      IF W_COUNTER EQ 1.
        I_ACCOUNTINGDATA-SERIAL_NO = '01'.
        I_ACCOUNTINGDATA-XUNPL     = ' '.
      ELSE.
        I_ACCOUNTINGDATA-SERIAL_NO = ' '.
        I_ACCOUNTINGDATA-XUNPL     = 'X'.
      ENDIF.
      MODIFY I_ACCOUNTINGDATA
       TRANSPORTING SERIAL_NO XUNPL
      WHERE INVOICE_DOC_ITEM = I_ITEM-INVOICE_DOC_ITEM.
      W_COUNTER = W_COUNTER + 1.
    ENDLOOP.
  ENDON.
ENDLOOP.
*   Changes over for  OSS Note 518338.
in this OSS Note 518338 it says:
Solution
Fill the tables as described in the documentation for the BAPI. If you want
to post unplanned account assignments for the invoice, fill field
'Unplanned account assignment from invoice verification' (XUNPL) in table
ACCOUNTINGDATA instead of field 'Serial number of account assignment'
(SERIAL_NO).
The question is that i do not have unplanned account assignment.
Any hint or suggestion would be greatly appreciated
Best regards.

Answer 1

Hi!
In your BAPI programs, you can not fill 2 or more invoice's items              
with same reference data into the BAPI interface table ITEMDATA.                                                                               
In your input data for BAPI with multi acc.assignment you should fill          
only one entry in ITEMDATA for given PO and more entries in                    
ACCOUNTINGDATA, each for a different SERIAL_NO.                                                                               
When you use multiple account assignment in  BAPI_INCOMINGINVOICE_CREATE       
then you have to fill the SERIAL_NO manually in the interface of bapi.         
Serial_No should contain 01,02 so on depending upon number of account          
assingnments the PO item has it. You can see the PO in transaction ME23N       
and then fill SERIAL_NO in the BAPI.                                                                               
Otherwise it can cause others problems in GR/IR account in the FI DOC          
and PO history, as well as in the further invoice processes reference to       
the PO/item (ex. MR8M, MR11, or create another new MM-invoice DOCs).           
For more information on this please review the following attached notes:       
972627  BAPI: Message M8 321 is displayed for no reason                        
512282  BAPIs: Service-based invoice verification.                             
Please check also the following information:
After applying the note 661864 the standard system doesn't support                                       
several invoice items reference to same PO/item and GR/item in the                                       
BAPI process anymore. Mainly this note was developed to avoid short                                      
dump. Now the message M8321 is issued.                                                                               
As you create MM-invoice using on-line transactions (ex MIRO), automatic                                 
processes (ERS, EDI) or BAPI as well, system will create or accept                                       
the invoice item in this way:                                                                               
Each item for a different reference data (EBELN,EBELP,LFGJA,LFBNR,LFPOS                                  
for normal PO, as well as PACKNO and INTROW for service PO):                                                                               
EBELN: PO's No.                                                                               
EBELP: PO's item No.                                                                               
LFGJA: original GR's year,                                                                               
LFBNR: original GR's No.                                                                               
LFPOS: original GR's item No.                                                                               
If the PO is with indicator 'GR based-IV'='X', the reference data (LFGJA                                 
LFBNR and LFPOS) must not be space. It means, you can't create an                                        
invoice reference to the PO before posting of the corresponding GR DOC,                                  
and one invoice item must be reference only to one GR DOC/item.                                                                               
Otherwise if the PO is with 'GR based-IV' = ' ', the reference data                                      
(LFGJA,LFBNR and LFPOS) are always space, you can create an invoice                                      
reference to the PO before the GR DOC or without GR DOC, or one invoice                                  
item can be reference to more GR DOC/items.                                                                               
And the concept is valid for the PO with 'GR based-IV' or without it.
Best regards
Erika