Business models on a platform have gained importance in business practices and research fields. Theories of the multisided model on a platform suggest that one of crucial factors is indirect networks occurred between several users' groups. However, the effects of indirect networks depend on the platform's characteristics. This study shows there is a situation where indirect networks do not work well even in a multisided model. Moreover, we will argue that a merchant model with deep integration of complementary technologies creates more values to all users' groups than implementing only a multisided model. We use a case approach. As the case, we picked salesforce.com implementing both multisided and merchant models up. Our findings show that platform such as enterprise integration systems should integrate complementary technologies deeply to achieve an effective platform strategy.