Pass Plant Code from SD Billing Doc to FI Doc

Question

For one of our company codes, it is necessary to produce financial reporting by plant.  For this reason, we are in the process of implementing the use of business areas to reflect the plant value.  We would like to ensure that the plant value is transferred from the SD billing document to the revenue line on the FI documents.
We have attempted the following technical user exit development:
1. Logic was placed in EXIT_SAPLV60B_004 to move the Plant Code from VBRP-WERKS into XACCIT-WERKS for select accounts.
2. Logic was placed in EXIT_SAPLV60B_008 to populate field WERKS in table XACCIT with the Plant Code for select accounts.
The above user exits were activated and we could verify by debugging that the XACCIT-WERKS field did in fact contain the Plant Code value, but this value was not properly transferred on to BSEG as we were informed it would be.  These efforts have not properly filled the BSEG value resulting in an error during the billing process due to plant being required on certain accounts.
If possible, please direct us to the appropriate user exit that can be used to successfully transfer the plant value from the SD billing document to the revenue line on the FI documents.
Thank you.

Answer 1

Use Process BTE 1120.  However, i'm confused as to whether you want plant or business area?  I'm assuming you have a business area that corresponds to each plant value, so don't you want to set the business area value if it's not assigned from the master record?
BTE Example:
  LOOP AT T_BKPF WHERE ...
      LOOP AT T_BSEG WHERE BUKRS EQ T_BKPF-BUKRS
                       AND BELNR EQ T_BKPF-BELNR
                       AND GJAHR EQ T_BKPF-GJAHR
                       AND KOART EQ 'D'
                       AND GSBER EQ SPACE.
* some determination code here
        READ TABLE T_BSEGSUB WITH KEY TABIX = SY-TABIX.
        CHECK SY-SUBRC EQ 0.
        T_BSEGSUB-GSBER = LS_DIVINFO-GSBER.
        MODIFY T_BSEGSUB INDEX SY-TABIX.
      ENDLOOP.
ENDLOOP.