XML schema size must be smaller than 400 elements and less than 100KB in size.
XML data file size must be less than 10MB.
Complexity profile is limited to three hierarchy levels with support for complexType elements Sequence, Any, and Choice.
The XML import wizard can create a maximum of 400 XML groups.
PowerCenter strictly follows the XML structure. For example, the W3C XSD rules allow attribute values in any order and not as they are defined in the XSD. In PowerCenter, the attribute values must be in the order that they are specified in the XSD.