To send inbound IDocs to SAP using ALE, create an SAPALEIDoc target definition in the Designer. An SAPALEIDoc target definition represents metadata for inbound IDocs. When you create an SAPALEIDoc target definition, the Designer displays a table with IDoc fields and SAP datatypes. When the PowerCenter Integration Service sends data to the SAP target, it converts the data based on the transformation datatypes in the mapping to the target datatypes.
An SAPALEIDoc target definition contains the predefined port IDocData. You cannot edit this port in the Designer.
You only need to maintain one SAPALEIDoc target definition per repository folder. When you include an SAPALEIDoc target definition in a mapping, you can add an instance of the target definition to the mapping.