firstName property.lastName property to the person node. This still works and one can create persons with lastNamefullName property to the person node. This does not work any more as gp_traversal.addV('person').property('fullName', 'test full name') throws error: Property Key constraint does not exist for given Vertex Label [person] and property key [fullName].gp_traversal.addV('person').property('lastName', 'test last name') works fine.gp_traversal.addV('person').property('fullName', 'test full name') throws Property Key constraint does not exist for given Vertex Label [person] and property key [fullName].printSchema() and all properties are created as expected, so gp_traversal.addV().property('fullName', 'test full name') works fine. Once we tried mgmt.getVertexLabel('person').mappedProperties() we could not see fullName property listed.fullName property starts working as expected but we are looking for a way to modify the schema without restarting the server.