The papiNet schema is also stored on-line for inclusion with your XML e-documents. Use a Name-Value pair separated by a space, where the Name is the namespace www.papinet.org/v2r40 and the value is the URL for the schema. The URL for the schema is www.papinet.org/v2r40/20211013/ followed by the e-document name.
For example, http://www.papinet.org/v2r40/20211013/PlanningV2R40.xsd for the Planning e-document.