In　recent　years,　there　has　been　an　increase　in　online　review　manipulation　on　the　platforms　of　electronic　commerce.　Previous　studies　clarify　the　benefits　and　harms　of　online　review　manipulation　for　firms,　and　they　provide　mixed　conclusions　on　the　influence　of　online　review　manipulation.　However,　the　effect　of　online　review　manipulation　on　product　sales　has　not　yet　been　thoroughly　studied　due　to　the　covert　nature　of　review　manipulation.　To　fill　this　research　gap,　this　paper　examines　the　different　effects　of　review　manipulation　in　three　dimensions:　quantity　manipulation,　quality　manipulation,　and　relation　manipulation.　Drawing　on　the　Information　Manipulation　Theory,　which　reveals　the　manipulation　behaviors　of　different　dimensions,　it　is　proposed　that　the　influence　of　online　review　manipulation　differs　significantly　among　different　information　manipulation　dimensions.　The　results　of　the　empirical　experiments　show　that　the　effect　of　review　quantity　manipulation　on　product　sales　exhibits　an　inverted　U-shape.　In　addition,　review　quality　manipulation　positively　affects　product　sales,　but　review　relation　manipulation　exerts　a　negative　effect.　Moreover,　the　magnitude　of　the　effect　of　review　manipulation　is　contingent　upon　review　manipulation　duration.　The　findings　shed　light　on　the　heterogeneous　effect　of　review　manipulation　dimensions　on　product　sales　from　an　information　manipulation　perspective　and　suggest　a　need　for　improvement　in　online　fraudulent　review　detection　in　the　early　stage　of　review　manipulation.