В результате долгих поисков по sdn.sap.com родилось следующее:
Code:
data:
        REQUISITION_ITEMS              type table of BAPIEBANC with header line
      , REQUISITION_ACCOUNT_ASSIGNMENT type table of BAPIEBKN  with header line
      , REQUISITION_SERVICES           type table of BAPIESLLC with header line
      , REQUISITION_SRV_ACCASS_VALUES  type TABLE OF BAPIESKLC WITH HEADER LINE
      , REQUISITION_SERVICES_TEXT      type TABLE OF BAPIESLLTX WITH HEADER LINE
      , V_PACKNO                       type PACKNO
      , NUMBER                         type BANFN
      , return                         type STANDARD TABLE OF BAPIRETURN
      .
      .
start-of-selection.
  REQUISITION_ITEMS-DOC_TYPE     = 'ZA'.      "услуга
  REQUISITION_ITEMS-ACCTASSCAT   = 'N'.
  REQUISITION_ITEMS-PUR_GROUP    = '020'.    
  REQUISITION_ITEMS-PLANT        = '2020'.    
  REQUISITION_ITEMS-DELIV_DATE   = SY-DATUM.  
  REQUISITION_ITEMS-ITEM_CAT_EXT = 'Y'.      
  REQUISITION_ITEMS-SHORT_TEXT   = 'Test'.    
  REQUISITION_ITEMS-MAT_GRP      = 'U300'.    
  REQUISITION_ITEMS-PCKG_NO      = '0000000001'.  
  REQUISITION_ITEMS-PREQ_ITEM    = '00001'.       
  append REQUISITION_ITEMS.
  REQUISITION_ACCOUNT_ASSIGNMENT-SERIAL_NO = '01'.   
  REQUISITION_ACCOUNT_ASSIGNMENT-PREQ_ITEM = '00001'. 
  REQUISITION_ACCOUNT_ASSIGNMENT-NETWORK   = '000004008797' .  " сетевой график
  REQUISITION_ACCOUNT_ASSIGNMENT-ACTIVITY  = '0030' .
  APPEND  REQUISITION_ACCOUNT_ASSIGNMENT.
  REQUISITION_SERVICES-PCKG_NO    = '0000000001'.  
  REQUISITION_SERVICES-SUBPCKG_NO = REQUISITION_SERVICES-PCKG_NO + 1. 
  REQUISITION_SERVICES-EXT_LINE   = 0. 
  REQUISITION_SERVICES-LINE_NO    = '1'.            
  REQUISITION_SERVICES-SHORT_TEXT = 'Test'.        
  REQUISITION_SERVICES-SERVICE    = '000000000003000004'.
  APPEND REQUISITION_SERVICES.
  requisition_services-pckg_no    = requisition_items-pckg_no + 1.
  requisition_services-subpckg_no = 0.
  requisition_services-ext_line   = requisition_services-ext_line + 10.
  requisition_services-line_no    = requisition_services-line_no + '0000000001'.
  REQUISITION_SERVICES-SHORT_TEXT = 'Test'.         
  REQUISITION_SERVICES-GR_PRICE   = '1.300'.      
  REQUISITION_SERVICES-QUANTITY   = '1.500'.       
  call function 'CONVERSION_EXIT_CUNIT_INPUT'
    exporting
      INPUT    = 'ЕР'
      LANGUAGE = SY-LANGU
    importing
      OUTPUT   = REQUISITION_SERVICES-BASE_UOM.
  append REQUISITION_SERVICES.
  REQUISITION_SRV_ACCASS_VALUES-PCKG_NO    = REQUISITION_SERVICES-PCKG_NO.
  REQUISITION_SRV_ACCASS_VALUES-LINE_NO    = REQUISITION_SERVICES-LINE_NO.
  REQUISITION_SRV_ACCASS_VALUES-SERNO_LINE =
  REQUISITION_SRV_ACCASS_VALUES-SERIAL_NO  = REQUISITION_ACCOUNT_ASSIGNMENT-SERIAL_NO. 
  REQUISITION_SRV_ACCASS_VALUES-QUANTITY   = 1.
  append REQUISITION_SRV_ACCASS_VALUES.
  call function 'BAPI_REQUISITION_CREATE'
    importing
      NUMBER                         = NUMBER
    tables
      REQUISITION_ITEMS              = REQUISITION_ITEMS
      REQUISITION_ACCOUNT_ASSIGNMENT = REQUISITION_ACCOUNT_ASSIGNMENT
      REQUISITION_SERVICES           = REQUISITION_SERVICES
      REQUISITION_SRV_ACCASS_VALUES  = REQUISITION_SRV_ACCASS_VALUES
      RETURN                         = RETURN.
Вся хитрость в заполнении REQUISITION_SERVICES.
В результате создается заявка на услугу.