Techniques, methods, and systems for managing a set of data network nodes in a Network Management System (NMS). In some examples, a method may include receiving, at the network orchestrator, a service invocation for a service transaction associated with a transaction object; storing, by the network orchestrator, service metadata as part of the transaction object; determining whether there is a service metadata conflict associated with the transaction object; and in response to determining that there is the service metadata conflict associated with the transaction object, retrying the service transaction; or in response to determining that there is no service metadata conflict associated with the transaction object, applying the service metadata to one or more nodes of the set of data nodes.