@jnsereko thank you for taking interest in sync2… First, have you tried setting up two server instances( you may find this post helpful Error while Building Sync2 module)… Most times it is beneficial to understand a module from an implementer’s point of view before tinkering with the actual code… Secondly checkout the tickets that are unsolved and try to reproduce the bugs mentioned or enhancements mentioned… Then u can have a happy coding journey through the module