A computer-implemented system may include reception of a user interface request corresponding to two or more chained operations associated with one or more service calls to a backend service layer, determination of whether to update a backend buffer after execution of each of the one or more service calls, execution, if it is determined to update the backend buffer after execution of each of the one or more service calls, of each of the one or more service calls, and a read service call after execution of each of the one or more service calls, and execution, if it is determined not to update the backend buffer after execution of each of the one or more service calls, of each of the one or more service calls in sequence, and a bulk read service call only after execution of all of the one or more service calls.