Google calendar does not synchronize/update when new calendar entry is made in Trello


when I add a new calendar entry in Trello for a card it does not update in Google calendar.

it only works when i create a new URL iCalendar-Feed and then add a new calendar in google. then all entries are shown.

if i then add a new calendar entry in trello, again, it will not show in google calendar.

I read that google only updates about once a day, but i created the entries yesterday and can still not see them in google calendar.

thanks for helping


7 answers

1 vote

I am having the same issue too. Without refreshing the url, I tried removing and adding again the trello url to my Google Calendar and I did not have the last entry though I expected it to retrieve last entries directly as it is requesting it at first at the registration of the calendar.

It looks more like a Trello issue as the provided url does not provide the last entries, but when you regenerate a new url, it works fine.

1 vote

I faced the same problem as well. I'm happy to find it out before upgrading to the gold version for the company. It is absolutely out if syncing does not work properly. Trello please fix the bug! I need you!

1 vote

Even the same happened with my whole team as well. After removal of date from trello cards (which would be already sync with google calendar through powerup and showing on particular calendar dates) would still display as it is even if we remove date from trello card.

Ideally when we add date to trello card then a link of this trello card will be shown on particular date on google calender which should be disappeared from calender once we remove date from trello.

I don't know whether it will be disappeared after sometime from calender or will never disappear.

Let's wait and watch.

1 vote

Hate to be that guy in the forum, but "me too".

0 votes
Matthew N Community Champion Jun 23, 2017

Hey Andrea

The process can be a bit finnicky at times, sometimes you'll see it sooner, sometimes later. It all depends on when Google pings the server for the updates.

I would recommend using a 3rd party called Cronofy for Trello to sync your board to your calendar. Cronofy is a bit more reliable, and allows for quicker updates than iCal.  

Hope that helps!

Thanks Matthew! I will try it and post how it worked....possibly next week rather than today.

Have a nice weekend!

Hi Matthew. I installed cronofy yesterday and connected the relevant calendars, but still not all entries from Trello are shown  in google calendar. Do you have another idea?


Now the entries finally appeared! But it took more than 24 h i think. In any case that is better than never :)

Thanks again, Matthew!

Hi Matthew,


I am running into the same issue. I appreciate the insights you shared with Andrea, but do you know when the Trello team will be able to address this bug? I rarely have syncing issues when I add other calendars to my Google Calendar via URL (eg. Outlook) though you're right, it's not always instantaneous. I have given trello 24 hours to sync and it hasn't. The only way to sync the calendar is to remove it and add it back via the URL.  I use Trello and Google Calendar extensively to manage tasks and projects, so having them integrate properly is super important.

Can you please let us know when you plan to have a fix?

just testing out trello gold, added the calendar power up, removed an item from trello still remains on google calendar. you'd think it'd be an instant thing most other things are with cloud sync. 

Cronofy is awesome, thanks.

I'm having the same problem, is there a fix for this bug?

0 votes
Matthew Fu I'm New Here Sunday

I don't think so. Having the problem still.

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