Transaction launcher ; we are try to call z and standard transaction in UI

As per the requirement, we are trying to call CRM Z transaction through web UI. We have used the Object TSTC and created a replica of the object ZTSTC and used the method execute. Made the necessary config for navigation bar and Business role. We could see the link in the Navigation bar but the link could not call the transaction. Pls suggest.Do we need to take the object of the Transaction or copy TSTC and proceed. Thanks in advance.Points will be awarded