Yurii 
 From the description on this thread I think have similar problems.
  
 In my app (http://appery.io/app/mobile-frame?src...) I have a template handling a panel menu. If I click specific option in this menu ("CumpleaƱos" in my example), I show a hidden text and two buttons. When clicking on Confirm button ("Siii!" in my example) a JS is executed, showing an alert and then executing a service called birthday_poll. Both The JS and the datasource-service mapping are defined at template level. 
 I Save and Test. 
 From any of the pages created from the Template, I open the panel menu (button on the top left corner), follow all the steps descripbed above and verify the behaviour in the console logs. What I see is  
 Uncaught ReferenceError: birthday_poll is not defined
 
 How shall I proceed? 
 Shall I define the datasource-service mapping at template level before creating template-based pages? 
 Shall I define the datasource-service mapping at page level (I have several template-based pages)?
 
 Thank you in advance! 
 Carlota F: