Fired when a Mercura user clicks Send to ERP on a project. Like the *.completed events the payload only says which project and when — fetch the record from GET /projects/{project_id}. object_number is Mercura's current value for your object id: null on a first handoff, and on a re-export the number you acknowledged earlier, so you can tell a create from an update without your own mapping table.
{
"event_id": "1f2e3d4c-5b6a-4978-8695-a4b3c2d1e0f9",
"event_type": "project.exported",
"delivered_at": "2026-08-31T09:15:00Z",
"data": {
"project_id": 90,
"name": "Maplewood Heights",
"object_number": null,
"status": "ACTIVE",
"request_count": 3,
"exported_at": "2026-08-31T09:14:58Z"
}
}