The invention concerns a method of providing service data towards a set of two or more network elements (31 to 35) of a telecommunication network (1), as well as a service provisioning system (2) and a computer program product for executing this method. The service provisioning system (2) receives a plurality of change requests for said service data, the change request concerning one or more of the network elements of the telecommunication network (1). The service provisioning system (2) analyzes the dependencies of two or more received change requests and/or corresponding network elements specific update requests with respect to service data. Then, it aggregates independent change requests and/or update requests and transmits one or more concurrent update commands that force a parallel execution of the aggregated change requests and/or update requests to one or more network elements of the telecommunication network (1).