The canonical XML representation is the format of an XML document that results from a serialization of ABAP data using XSLT programs, or that is required for a deserialization using XSLT. This format is also referred to as asXML (ABAP Serialization XML). The canonical XML representation supports all ABAP data types.
The asXML format is significant in the following cases:
The asXML format of serialized ABAP data or objects can be created and examined using the predefined identity transformation ID.
Named Data Objects, with the Exception of Reference Variables
Reference Variables and Referenced Objects