Methods and apparatus, including computer program products, for a query response service for business objects. In general, data characterizing a request to perform a query on multiple instances of a business object may be received, where the query includes selection criteria for multiple attributes across multiple nodes for each of the instances of the business object. The query may be initiated on the instances of the business object. Results including values from the attributes across the nodes of the business objects may be returned. The query may be assigned to a node of the business object, which may be a query response transformation node. The node may include a combination of attributes associated with the attributes across the nodes of the business object. Results may be sorted on a server, sent as pages to a client, or both.