I have a calculation field and script that creates an ICS file and exports the field, creating a personal calendar entry. It works fine on the Mac desktop, but gives an error under FileMaker Go on the iPhone: "Alert: This invitation data is out of date."
Oddly, on the iPhone if I email the file to myself, then open, it works!
This is the content of the ICS file:
LOCATION:123 Main St 90011