I am using the Java client library and I was able to append a name/pair to an existing event -

public CalendarEventEntry getOneEvent(String text) throws Exception {

URL feedUrl = new URL(" http://www.google.com/calendar/feeds/default/private/full");

CalendarQuery query = new CalendarQuery(feedUrl); query.setFullTextQuery(text); query.setMaxResults(1);

CalendarEventFeed resultFeed = calendarService.query(query, CalendarEventFeed.class);

CalendarEventEntry entry = null;

Iterator iter = resultFeed.getEntries().iterator();

while (iter.hasNext()) { entry = (CalendarEventEntry) iter.next(); break; }

return entry; }

public void appendExtendedProp() throws Exception {

URL feedUrl = new URL(" http://www.google.com/calendar/feeds/default/private/full");

CalendarEventEntry entry = getOneEvent(CLIENT_NAME);

String name = "http://mySticky.com/schemas/2007#sticky.text"; String value = "test%20textaaa";

ExtendedProperty prop = new ExtendedProperty(); prop.setName(name); prop.setValue(value);

entry.addExtendedProperty(prop);

entry.update(); }

There isn't any changes on the server that im aware of, let's take a look at the code snippet that you use to perform the update, maybe that can help narrow down the cause. Thanks.

Austin

On Mon, May 19, 2008 at 4:39 PM, Dan <Dani...@gmail.com> wrote: