Dynamics CRM 2015 - Solving JQuery Issues in Microsoft Dynamics CRM Online 2015 Update 1

With Microsoft Dynamics CRM Online 2015 Update 1, form scripts run in a different scope than the jQuery instance used by the application, the call to the jQuery $.ajax method will fail with an error “$ is undefined”

Solutions

1. Go To Setting > Administrator > System Setting > Set user legacy form rendering to "Yes"

    

2. Change your jQuery Syntax 

  

From JQuery to parent.JQuery

or

From $ to parent.$

Result !!!