1. WE31 创建IDOC所包含的字段

1. WE30 创建IDOC 把Segment分配给IDOC

1. WE81  创建信息类型

1. WE82   把IDOC类型与信息类型对应

1. WE57 Assign Message & Idoc Type to a Function Module for data Process (Optional)

1. SM59 Define a RFC connection for Idoc transfer

1. WE21 Define a Port ( Assign a RFC destination which created in SM59 )

1. WE41/42 Creat Process Code

1. WE20 Define a Partner Profiles

First create Logical system in SALE

1. Use program to build and send out IDOC

REPORT  ZTESTFORGG_SENDIDOC.

  DATA: head TYPE zgghead,
        item TYPE zggitem,
        char TYPE zggchar.

  DATA: control_data LIKE edidc,
        data LIKE edidd OCCURS 0 WITH HEADER LINE,
        communication LIKE edidc OCCURS 0 WITH HEADER LINE.

*  Master idoc control record
  control_data-rcvprt = ‘LS‘.
  control_data-rcvprn = ‘ZGG_OUT_LS‘.
  control_data-rcvpor = ‘ZGG_OUT‘.
  control_data-idoctp = ‘ZGGIDOC‘.
  control_data-mestyp = ‘ZGGMSG‘.
*   master idoc data records

  head-f1 = ‘Header‘.
  data-segnam = ‘ZGGHEAD‘.
  data-sdata = head.
  append data.

  item-if1 = ‘Item1‘.
  data-segnam = ‘ZGGITEM‘.
  data-sdata = item.
  APPEND data.

  char-cf1 = ‘Char1‘.
  data-segnam = ‘ZGGCHAR‘.
  data-sdata = char.
  APPEND data.

  item-if1 = ‘Item2‘.
  data-segnam = ‘ZGGITEM‘.
  data-sdata = item.
  APPEND data.

  char-cf1 = ‘Char21‘.
  data-segnam = ‘ZGGCHAR‘.
  data-sdata = char.
  APPEND data.

  char-cf1 = ‘Char22‘.
  data-segnam = ‘ZGGCHAR‘.
  data-sdata = char.
  APPEND data.

  item-if1 = ‘Item3‘.
  data-segnam = ‘ZGGITEM‘.
  data-sdata = item.
  APPEND data.

  CALL FUNCTION ‘MASTER_IDOC_DISTRIBUTE‘
    EXPORTING
      master_idoc_control = control_data
    TABLES
      communication_idoc_control = communication
      master_idoc_data = data.
  IF sy-subrc = 0.
    COMMIT WORK.
  ENDIF.

1. WE02 to Check result

1. Use program RSEOUT00 (usually set up as job) tosend to external system

1. BD64 to create distribution model (Optional)

1. BD51 to maintain the characteristic of Inboundprocessing function module

First create a FM with fixparameters (creation with referring to FM IDOC_INPUT_MATMAS01)

1. WE57 to mapping the Inbound processing functionmodule with message type

1. WE42 to Create inbound process code

1. WE20 to add the inbound message into logicalsystem

手工处理inbound IDOC：BD87， 程序：RBDAPP01（BD20，可用于schedule一个job）RBDMANI2

Create a table to store the inbound IDOC data

BD87 to process inbound IDOC

Recipient中的Port要维护成WE20里面Message对应的LS

Check the data in table

Inbound processing function module:

FUNCTION zggmsg_in_proc.
*"----------------------------------------------------------------------
*"*"Global Interface:
*"  IMPORTING
*"     VALUE(INPUT_METHOD) LIKE  BDWFAP_PAR-INPUTMETHD
*"     VALUE(MASS_PROCESSING) LIKE  BDWFAP_PAR-MASS_PROC
*"     VALUE(NO_APPLICATION_LOG) LIKE  SY-DATAR OPTIONAL
*"     VALUE(MASSSAVEINFOS) LIKE  MASSSAVINF STRUCTURE  MASSSAVINF
*"       OPTIONAL
*"  EXPORTING
*"     VALUE(WORKFLOW_RESULT) LIKE  BDWF_PARAM-RESULT
*"     VALUE(APPLICATION_VARIABLE) LIKE  BDWF_PARAM-APPL_VAR
*"     VALUE(IN_UPDATE_TASK) LIKE  BDWFAP_PAR-UPDATETASK
*"     VALUE(CALL_TRANSACTION_DONE) LIKE  BDWFAP_PAR-CALLTRANS
*"  TABLES
*"      IDOC_CONTRL STRUCTURE  EDIDC
*"      IDOC_DATA STRUCTURE  EDIDD
*"      IDOC_STATUS STRUCTURE  BDIDOCSTAT
*"      RETURN_VARIABLES STRUCTURE  BDWFRETVAR
*"      SERIALIZATION_INFO STRUCTURE  BDI_SER
*"  EXCEPTIONS
*"      WRONG_FUNCTION_CALLED
*"----------------------------------------------------------------------
  DATA: wa_idoc_control   TYPE          edidc,
        wa_idoc_data      TYPE          edidd,
        gv_time           TYPE          sy-uzeit,
        gv_index          TYPE          i,
        gv_appt_ser       TYPE          string.
  DATA: lt_zggmsg         TYPE STANDARD TABLE OF zggmsg,
        lw_zggmsg         TYPE zggmsg,
        lv_key1           TYPE timestampl,
        lv_key            TYPE timestamp.
  IF idoc_contrl-mestyp = ‘ZGGMSG‘.
    "check if it is the right message type
****for inbound IDoc receive, you can‘t delete this block of code, otherwise the inbound IDoc will be error
    READ TABLE idoc_contrl INDEX 1.
    "/h
    IF sy-subrc = 0.
      idoc_status-docnum = idoc_contrl-docnum.
      idoc_status-status = ‘53‘.
      idoc_status-msgty = ‘S‘.
      idoc_status-msgid = ‘00‘.
      idoc_status-msgno = ‘001‘.
      idoc_status-msgv1 = ‘This is ‘.
      idoc_status-msgv2 = ‘a message ‘.
      idoc_status-msgv3 = ‘from ‘.
      idoc_status-msgv4 = ‘Gavin‘.
    ELSE.
      idoc_status-docnum = idoc_contrl-docnum."/h
      idoc_status-status = ‘51‘.
    ENDIF.
    APPEND idoc_status.
****for inbound IDoc receive, you can‘t delete this block of code, otherwise the inbound IDoc will be error
    CLEAR gv_index.
    LOOP AT idoc_data WHERE segnam = ‘ZGGCHAR‘.
      gv_index = gv_index + 1.
      GET TIME STAMP FIELD lv_key.
      GET TIME STAMP FIELD lv_key1.
      lw_zggmsg-cdate = lv_key.
      lw_zggmsg-seqnum = gv_index.
      lw_zggmsg-cf1 = idoc_data-sdata.
      READ TABLE idoc_data WITH KEY segnum = idoc_data-psgnum.
      IF sy-subrc = 0.
        lw_zggmsg-if1 = idoc_data-sdata.
        READ TABLE idoc_data WITH KEY segnum = idoc_data-psgnum.
        IF sy-subrc = 0.
          lw_zggmsg-f1 = idoc_data-sdata.
        ENDIF.
      ENDIF.

      APPEND lw_zggmsg TO lt_zggmsg.
      CLEAR lw_zggmsg.

    ENDLOOP.

  ENDIF.

  IF lt_zggmsg IS NOT INITIAL.
    MODIFY zggmsg FROM TABLE lt_zggmsg.
    COMMIT WORK AND WAIT.
  ENDIF.

ENDFUNCTION.

Some related link:

http://docs.oracle.com/cd/B14099_19/integrate.1012/b14061/processing.htm

http://blog.csdn.net/hackai886/article/details/7930052

Some more testing:

If change the RFC connection to another client

Send IDOC out from 781, and firstly in 782 it will geterror:

Add parameters in WE20 (first need to maintain WE42)

BD87 reprocess the IDOC

Check in table

Step by Step for configuration of sending customize IDOC/自定义IDOC发送配置