Thanks for contacting Syncfusion support.
Currently, we don’t have support to serialize BPMN diagram into BPMN compatible 2.0 xml format. As a workaround, we have exported BPMN start event into an xml in the application level. Please refer to index.html file in the below example in which we have converted BPMN 2.0 to xml in exportxml method.
We have logged “Need to provide support to save BPMN Diagram in BPMN 2.0 xml format” as a feature. We have logged the feature request for this. We will implement this feature in any of our upcoming releases.
We are closing the incident. Now, you can now track the status of your request, review the proposed resolution timeline, and contact us for any further inquiries through below link.
We will let you know when this feature is implemented.