Sync issues

[benjaminblackswan]

OGcalsync_2025-08-09.log
Hi Paul

I have encountered some sync issues.

I have both my Outlook calendar and my Google Calendar displayed on my Android phone Business Calendar widgets and as you can see there are a few sync issues. The Black one is Outlook and the Red one is Google.

I am using 2.11.5 Alpha version.

I only do Outlook to Google, so Google should be a carbon copy of Outlook with < 15 minutes delay, the screenshot was taken at 2025-08-09 23:43

1. The event at 10:48 is repeated four times in Google Calendar, so I have three extra copies for some reason.
2. the two events 18:06 and 18:45 are not synced at call in Google Calendar despite subsequent events synced.

Just to be sure, I went to into Google Calendar in browser and indeed it reflects the issue on my widget.

I have attached the log file.

Thanks.

[phw198]

I don't think this is the problem, but I note that at 10:38, logs show that OGCS could not connect to Exchange due to a network problem - due to the point in the code that this happened, it incorrectly surmised that there were corporate restrictions on your access and you then had the message displayed on each sync "Corporate policy/anti-virus is restricting certain functionality. This may prevent proper detection of meeting organiser time zones, resulting in incorrect local start times due to DST."

Later on for the "sd 1058 4.2 Correlated Subqueries Part 1" item, we see "It looks like the organiser changed time of appointment, but due to GAL policy we can't check who they are.". Two questions:-

1. Is this item organised by someone else and they changed the time?
2. If you close and restart OGCS, does the corporate policy warning still display and does it fix up the appointment duplication?

However, as I said, I don't think this is the issue - each Google item has a different Outlook item ID associated with it and if this didn't exist in Outlook any more, then OGCS would delete it. So the real question is, why are you not seeing these 4 "duplicates" in Outlook? In Settings > Application Behaviour > Logging > Create CSVs, you could turn this on and then check was is reported in outllook_appointments.csv. I expect to see the duplicates listed...

For the missing items, I see lots of changes:-
First updating an existing item

2025-08-09 18:11:06,592 DEBUG 10 OutlookGoogleCalendarSync.Google.Calendar [886] -  Processing >> 2025-08-09 18:06 => "sd 1058 4.2.1 The EXISTS predicate"
2025-08-09 18:11:07,042 DEBUG 10 OutlookGoogleCalendarSync.Console [426] -  <Console\Console.cs:498> 
2025-08-09 18:11:07,042 DEBUG 10 OutlookGoogleCalendarSync.Console [426] -  Start time: 2025-08-09 11:30 => 2025-08-09 18:06
2025-08-09 18:11:07,042 DEBUG 10 OutlookGoogleCalendarSync.Console [426] -  End time: 2025-08-09 12:00 => 2025-08-09 18:36
2025-08-09 18:11:07,042 DEBUG 10 OutlookGoogleCalendarSync.Console [426] -  Subject: sd 1058 4.2 Correlated Subqueries Part 2 => sd 1058 4.2.1 The EXISTS predicate
2025-08-09 18:11:07,042 DEBUG 10 OutlookGoogleCalendarSync.Console [426] -  <Google\GoogleCalendar.cs:1091> 3 attributes updated.

Then changing the end tme

2025-08-09 18:41:06,961 DEBUG 19 OutlookGoogleCalendarSync.Google.Calendar [886] -  Processing >> 2025-08-09 18:06 => "sd 1058 4.2.1 The EXISTS predicate"
2025-08-09 18:41:07,185 DEBUG 19 OutlookGoogleCalendarSync.Console [426] -  <Console\Console.cs:498> 
2025-08-09 18:41:07,185 DEBUG 19 OutlookGoogleCalendarSync.Console [426] -  End time: 2025-08-09 18:36 => 2025-08-09 18:24
2025-08-09 18:41:07,185 DEBUG 19 OutlookGoogleCalendarSync.Console [426] -  <Google\GoogleCalendar.cs:1091> 1 attributes updated.

Before updating to a different item

2025-08-09 18:56:07,782 DEBUG 12 OutlookGoogleCalendarSync.Google.Calendar [886] -  Processing >> 2025-08-09 18:42 => "sd 1058 sd 1058 4.3 Beyond the Fundamentals of Subquery"
2025-08-09 18:56:08,006 DEBUG 12 OutlookGoogleCalendarSync.Console [426] -  <Console\Console.cs:498> 
2025-08-09 18:56:08,006 DEBUG 12 OutlookGoogleCalendarSync.Console [426] -  Start time: 2025-08-09 18:06 => 2025-08-09 18:42
2025-08-09 18:56:08,006 DEBUG 12 OutlookGoogleCalendarSync.Console [426] -  End time: 2025-08-09 18:24 => 2025-08-09 19:06
2025-08-09 18:56:08,006 DEBUG 12 OutlookGoogleCalendarSync.Console [426] -  Subject: sd 1058 4.2.1 The EXISTS predicate => sd 1058 sd 1058 4.3 Beyond the Fundamentals of ...
2025-08-09 18:56:08,006 DEBUG 12 OutlookGoogleCalendarSync.Console [426] -  <Google\GoogleCalendar.cs:1091> 3 attributes updated.

Not really sure what's going on at source in Outlook - are you or an organiser doing lots of copy and paste, renaming, rescheduling activities on these item?

Steps from here:

1. Shutdown Outlook and OGCS
2. Open Outlook, make sure it is fully synced with Exchange
3. Open OGCS, turn on CSV generation
4. Do a Full Sync by pressing Shift and Sync button