Am I missing something obvious or can you really not enter a recurrenct pattern of 'every x years' where x could be 2,3,4 etc for calendar list events? You can enter a recurrence of every 2 days, weeks, months so why not years?? I know that one solution would be to use months and enter a recurrence of 24, 36 etc months (although I haven't tried and tested this) but it just seems like another annoying piece of functionality that was forgotten about when designing this particular type of list.

Hi there. Well, if setting the recurrence of 24,36,48.. months doesn't do it, you can always make a custom list and add the functionality in code. The code for creating an event that re-ocurr every other year is something like this: SPList list = web.Lists["Test Calendar"]; SPListItem item = list.Items.Add(); item["Title"] = "Test item"; string recData = @" <recurrence> <rule> <firstDayOfWeek>mo</firstDayOfWeek> <repeat> <yearly yearFrequency='2' month='1' day='5'/> </repeat> <repeatForever>TRUE></repeatForever> </rule> </reurrence>"; item["RecurrenceData"] = recData; item["EventType"] = 1; item["UID"] = System.Guid.NewGuid(); item["Recurrence"] = -1; item["EventDate"] = new DateTime(2010, 1, 1, 8, 0, 0); item["EndDate"] = new DateTime(2020, 1, 1, 10, 0, 0); item["Recurrence"] = -1; item.Update(); I have verified this, and it creates an item that indeed occurs every other year. Hope this helps. Regards, Magnus My blog: InsomniacGeek.com

Thanks for your response Magnus. I am aware that this can be accomplished by using a custom list and code but wanted to ask/confirm that this functionality was actually missing OOTB. It was brought to my attention by a few of our users and this list has been in use for 6 months now so didn't really want to go and set up a new custom list. I've had to do so many workarounds for the calendar list already - I really hope this type of list has been improved in SharePoint 2010. The months workaround should work but if not I can look at creating a custom list and migrating the data across. Mike, I didn't realise having 2 question marks in the title was so offensive! A thousand aplologies. Also, I asked this question less than 24 hours ago and the only reply I received was proposed and then marked as an answer by Paul and Mike before I had even read the reply myself - although grateful for Magnus' response, I was hoping to see if anyone else had any other input. Thanks Nicky

Update on this - you can't set a month frequency greater than 12 so this workaround won't work. Therefore, it appears that it is impossible to set a recurring event for every x years (or even for every 18 months for example) through the UI. However, having a year frequency greater than 1 is possible programmtically so I I have no idea why SharePoint would omit this functionality through the front end. If custom code is used, this will only generate recurring tasks for the next 2 years so I'm at a loss either way. Anyone else got any ideas? Thanks Nicky