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今天又学习了一下Idoc的知识，包括Idoc的概念、开发、配置和管理。
Concept
EDI：公司之间的电子数据交换。
ALE：公司之内不同系统之间的数据交换。
IDOC：基本上就是EDI的一种实现形式，用于SAP。     

1. Control record, data record, status record
2. Outbound and inbound
3. Sender and receiver
4. Partner(协议) and port（发送的形式eg：File, RFC,XML）
5. Status

IDoc Development
Message type WE81, identifies type of data : MATMAS (material master)

Idoc type WE30, indicates the SAP format of the data : MATMAS05 ( 05-version)

Segment WE31, structures used to define data: E1MARAM (material master general data)
Link message type with basic type WE82

Outbound – outbound process code/outbound function module WE41, only for application outbound

Inbound – inbound process code/inbound function module WE42

Link inbound function module to message type and Idoc type WE57
Mtn. inbound function module attribute BD51

IDoc Configuration
General:           RFC destination SM59， 定义 transactional RFC port destination

                        Logical System BD54，定义LS partner type

                        Partner Profile WE20, 用于定义数据交换的参数

                        Port WE21，用于定义各类port

For Master data outb ： distribution model BD64

For Application data outb ：outb process code WE41
                                                           Condition type NACE
Demo: 1）master data outbound and inbound
从IDES 800 发到 IDES 810:      
            1. develop idoc type in 800
            2. config destination LS/port/partner profile in 800
            3 config LS/partnerprofile in 810
            4. test with BD10
            5. check with WE02

Demo: 2) purchase order output to file
            1. use standard message type ORDERS，idoc type orders05，define process code（WE41）ME10
            2.config port, LS, partner profile; for application only : process code and condition type
            3. configure condition type(同义：message type, output type) : NACE 1output type 2procedure
            4.test with create PO
            5.check with WE02 , AL11 check directory

IDoc administration
Transactions:
WEDI: Area Menu

WE02/WE05: display Idoc

BD87: Monitor/process Idoc message

WE19: Test/Reprocess Idoc

Program:

RSNAST00: create idoc for message(application data)

RSEOUT00: process all selected Idocs (EDI)

RBDAPP01: Inbound Processing of Idocs ready for transfer
Tips:

Tables:  EDIDC(control record : idoc)

                        EDID4: Idoc records from 4.0 onwards

                        EDIDS: status record

                        NAST: Message record (application data)

Function modules:

                        IDOC_WRITE_AND_START_INBOUND: create Idoc and process Idoc

                        MASTER_IDOC_DISTRIBUTE: create outbound Idoc