IDoc Mapplets Overview
You can import an IDoc as a mapplet using the SAP Metadata utility. An IDoc contains a hierarchical structure consisting of segments. Each segment is an SAP structure defined in the SAP system.
An IDoc has header and data record components. The header component contains control information, such as creation date and status. The control information is in an SAP structure called EDIDC. The data records are in an SAP structure called EDIDD.