I have a Creator application receiving data from a web site.  This Creator app is linked to my Sheet via the Link External Data function.  I can successfully import the data manually using the Refresh action, however - the schedule periodically import of 30 minutes does not update the Sheet.

The set up is similar to this example http://blogs.zoho.com/creator/mashup-with-external-data-in-zoho-sheet

Does the schedule import work?