iphone calendar problem

[mcesari]

I have a user with an iphone that cannot get most of her calendar to sync. I see a few calendar items on the iphone. Only 1 event for August when there should be at least three or four per day.

I see in the sync log a lot of these
2010-08-05 12:00:03,545 DEBUG [btpool0-117626] [name=xxx;mid=3681;ip=xxx;item=147999;DeviceId=Appl 8411PNA3NP;DeviceType=iPhone;class=Calendar;folder =10;SyncCmd=Sync;] sync - Exception processing server change; item skipped

Any ideas on what could be going on? Also, any way to figure out what item=147999 is? I see these exceptions for many different calendar items but I have no idea how to go from that number to something usable.

Thanks,

[dino]

I'm seeing the same problem here with 3G phones.
Part of the log shows
class=Calendar;folder=10;item=7854;

I've been trying to figure out also how to track the folder and the item number.

Snippets of the logs

Exception processing server change; item skipped
2010-08-11 11:11:45,362 DEBUG [btpool0-76903://xxx.xxx.xx/Microsoft-Server-ActiveSync?User=xxx@xxx.xxx&DeviceId=Appl88846FDHY 7H&Devi
ceType=iPhone&Cmd=Sync] [name=xxx@xxx.xxx;mid=750;ip=x.x.x.x;Cmd=Sync;Devic eID=Appl88846FDHY7H;class=Calendar;folder=10;item= 7841;] sync -

Exception processing server change; item skipped
2010-08-11 11:11:45,362 WARN [btpool0-76903://xxx.xxx.xxx/Microsoft-Server-ActiveSync?User=xxx@xxx.xxx&DeviceId=Appl88846FDHY 7H&Devi
ceType=iPhone&Cmd=Sync] [name=xxx@xxx.xxx;mid=750;ip=x.x.x.x;Cmd=Sync;Devic eID=Appl88846FDHY7H;class=Calendar;folder=10;item= 7854;] sync -

[mcesari]

I have tried to track down the items in the mysql database but it doesnt seem like they exist..

[dino]

I think I might have found a work around. A few days have to go by to really know if this worked.
Since the logs were showing sync issues in the calendar, I exported the calendar through the Zimbra UI. This created an ICS file.
I then cleared the calendar
zmmailbox -z -m user@domain.com emptyFolder /Calendar

and imported it back to the server.
After this the user forced a sync on the iphone and all items synced fine. No skipped errors appeared in the logs after this. I did it with at least three users and it worked every time. However, I'm still keeping an eye on this as sometimes an event throws the whole syncing out of whack.
My next step was going to be work with the ICS file, but I'm hoping I don't have to do that.