When using content assist, the option to create a “synchronize <MBOname>” menu is automatically added only if the mobile business object has no synchronization parameters mapped. If there are synchronization parameters already configured in the mobile business object, you can select the "create inputs" option to create the form data with a synchronization button.
Note: If the mobile business object to which you are adding a synchronization action has a child mobile business object, you must add a Refresh action to the screen of the child mobile business object so that the screen refreshes with the updated data.
The Synchronization Action dialog launches, with the synchronization parameters automatically listed.