idoc metadata

[Former Member]

hi

why should we import idoc metadata while using idoc adapter and what do we mean by metadata.even in mapping idoc structure why we assign segment and begin to constant values and disable cntrol record field.

regards

raghu

[Former Member · Accepted solution]

Hi Raghu,

What is Metadata:

IDoc (Intermediate Document) metadata comprises structures for the corresponding IDoc types .This metadata is just a description of available structures

and fields.Using an RFC connection, metadata of this type can be either called directly at runtime or loaded to the Integration Server beforehand.Thus it can be loaded in two ways:

1. During the runtime

2. Before the actual message flow.

To find out what metadata has already been loaded, call the transaction Metadata Overview for IDoc Adapter (IDX2).The system displays a screen with the directory of all systems connected with the IDoc adapter (including a description) for which metadata has already been loaded. Choose Port Maintenance in IDoc Adapter () to call the corresponding transaction and to create additional ports.

Why to Import:

To process an IDocs in the form of an IDOCXML

message, an IDoc’s metadata must be loaded into

the Integration Server so that SAP XI’s IDoc adapter can

change the native IDoc format into the XML representation.

All IDocs are created according to specific rules: This is the general structure (the record types) of every IDoc. Special rules affect the different IDoc types.

Segment:

Segment is like a container which strores all administration information for technical processing, as well as the actual application data.of an IDOC.

Fields :

A segment comprises segment fields as the smallest unit of the Idoc which contains the actual values and information.

control record :

The control record is identical for all IDocs and contains the administration information, for example, sender, recipient and message. Note that the control record also contains the last processing status ( STATUS field).

If you disable the Apply Control Record Values from Payload indicator in the receiver IDoc adapter, the fields are filled from the system information not from the payload as:

1. From XI sender service, configuration in Integration Directory, System Landscape Directory

2. Constant LS

3 . From XI receiver service, configuration in Integration Directory, System Landscape Directory

If you enable the Apply Control Record Values from Payload indicator in the receiver IDoc adapter, the fields are filled from the IDoc-XML payload.

**Pls: Reward points if helpful **

Regards,

Jyoti

[nikhil_bose]

The metadata contains the description of IDoc

When IDoc is transfered from one system to another, both systems needs the structure of IDoc ( see Partner profile, outbound/inbound IDoc processing). So the PI component needs the metadata which comes out from another R/3.

IDoc is transfered through tRFc and the port defined in the receiver end using IDX1 (Port) uses the RFC Destination to retrieve the metadata (IDX2).

hope you understand the need of metadata in outbound and inbound by referring documentation.

thanks

nikhil

[Former Member]

HI,

IDOC metadata:

IDoc (Intermediate Document) metadata comprises structures for the corresponding IDoc types that are required by the IDoc adapter to convert these IDocs to IDoc XML format and the other way around.

Using an RFC connection, metadata of this type can be either called directly at runtime or loaded to the Integration Server beforehand.

The system containing the metadata is either the sender or receiver SAP system or, if the sender or receiver system is a subsystem, the SAP reference system where the metadata is saved.

You can display metadata that has already been loaded, or if you are upgrading the application system then you can delete the metadata and reload it.

Prerequisites

To access the metadata in the sender system, you must establish an RFC connection to this system using the port maintenance in the IDoc adapter.

Hope u got the answer of ur questions.

Thanks and Rgards,

Chirag Gohil

Reward points if it helps.

[Former Member]

Hi Raghu,

Metadata is nothing but data about 'data'.

Idoc communication is adpater less communication.

using IDX1 we define the trfc port thro' which data comes in an out.

See When we send Idoc from R/3 to Xi, we dont transform it into XML structure.so we need to import the metadata of IDoc in XI before sending the Idoc so that XI can undersatnd the incoming Idoc.

Regards

Biplab