With a Model-Driven Development, where Business-Processes (BP) drive concrete Service-Component Architectures (SCA), less effort is gone into Business/IT aligning during the initial modeling activities, and IT developers can rapidly proceed with the implementation. However, enabling changes on the BP while keeping them in sync with the underlying technical architectures is of high relevance to the key elements of any Service-oriented Software Engineering. Given an update to BP, this paper introduces an incremental model transformation approach to propagate the update to the underlying SCA. As a major contribution, our approach makes change propagation more tractable to reconfigure system architectures without disrupting their language-specific structural consistency. We propose an algorithm to wrap incremental transformation into a BPMN-to-SCA synchronizer with the help of conditional graph rewriting.