Configuring Ports 

Purpose

Ports are a fundamental requirement for communicating by means of the the IDoc interface. At least one port must exist for each external system. The figure below shows how IDocs are sent to two subsystems via three ports.

Via the port version you inform the R/3 System of the release status of the receiving system. Also read the section

Communication with Older Releases/Subsystems

Prerequisites

You must also make settings outside the IDoc interface so that the port can be used. These settings depend on the required Port type and are specified in the relevant subsections.

Process flow

The process flow depends on the port type. The table below contains application areas and refers to the detail descriptions.

Port type

Application area

File Interface

Link to most EDI subsystems

Transactional RFC

ALE distribution scenarios

CPI-C

Link to R/2 System: Direct communication with an R/2 System (from version 5.0F onwards) is only possible via this port type.

Internet

Sending to e-mail addresses

Programming Interface (PI)

The IDoc is not exchanged with an external system but rather with a function module you have written. This means that any dispatch type can be used.

XML

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