CRM 2015 - {Javascript Code Example #2} - Save a form asynchronously with call back function

 If for any reason you need to have a call back function in CRM after saving a form asynchronously it is possible to do with this line below:

Xrm.Page.data.refresh(save).then(successCallback, errorCallback); 

More detail please see next table:

Name	Type	Required	Description
save	Boolean	No	true   if the data should be saved after it is refreshed, otherwise   false .
successCallback	Function	No	A function to call when the operation succeeds.
errorCallback	Function	No	A function to call when the operation fails.  An object with the following properties will be passed:  errorCode :   Number . The error code. message :   String . A localized error message.

Src:

https://msdn.microsoft.com/en-us/library/dn481607.aspx