the improvement of business processes has been recently emerged as one of the top business process management (BPM) is currently being seen as the best way to facilitate process improvements. the chalenges of BPM implementation have been widelye cited in the literature but research on the critical factores for initial and ongoing BPM implemenintationsuccess is rare and fragmented. the aim ofthis reseach is to eliced and categorize success fastors that influence BPM implementation. qualitative meta-synthesis research method was condusted which is based on previous qualitative studies with different metodes. seven clusters of CSFS are indetified: strategy, people, IT architecture, optimization and process architecture and project management. result demonstrated that strategy, people, and process architecture are the most important clusters affect BPM implementation base of experts' viewpoint. envisaging these mentioned CSF categories by managers and implementers would be helpful to set down BMP successfully.