Setting up One-Way Syncing

Follow this section to configure syncing between two calendars you have already connected to your CalendarBridge account.

C Chad Updated February 23, 2026 12 min read

Introduction

This article walks you through setting up syncing from one calendar to one other calendar. If you want to setup syncing in both directions between multiple calendars (i.e., if you want to setup multiple sync connections at once, see Setting up Multiple Sync Connections).

Go to your Syncs page

Click the “Syncs” link at the top navigation bar. Or just enter https://calendarbridge.com/dashboard/syncs into your browser. If you have not yet created any syncs, it will look like this:

Click the “New Sync +” button to proceed to the calendars select screen.

CalendarBridge User Dashboard

Select the Source Calendar

Selecting a Google, Microsoft, or iCloud source calendar

In the center column of this screen are listed all the calendar accounts you have connected to CalendarBridge.

Find the account of the source calendar that you want, and click it to expand a list of calendars for that account.

select goog calendar

Explanation of this screen

In the “Select Source Calendar” screen, each calendar in the list is represented by a rectangle with:

Select the calendar you want events to be copied from.

Using an ICS URL as a source calendar

If the desired source calendar is not a Google, Microsoft, or iCloud calendar. OR, if the desired source calendar is on a Google or Microsoft account for which the administrator does not allow you to connect CalendarBridge, you can still use that calendar as a source calendar if you can publish a .ics feed for that calendar.

Click to expand “Other Calendar Types”

Paste the public .ics URL of the calendar into the box and click “Use ICS URL as Source.”

ICS URL as source calendar

Select the Destination Calendar

Next, expand the list of calendars for the account that you want as the destination, and then select the particular calendar of that account that you want events to be copied to.

In the screenshot below, events will be copied from the calendar named “marketing@calendarbridge.com” on the Google account associated with marketing@calendarbridge.com; those events will be copied to the calendar named “Home” on the iCloud account for cal_bridge@icloud.com

source and destination calendars selected

For Microsoft accounts, verify the time zone of the calendar.

By default, we assume the time zone of the Microsoft calendar is the time zone you are currently in. If this is not the case, select the correct time zone from the drop down menu.

Once you have selected the source and destination calendars and set the timezone of any Microsoft calendars, click “Continue to Privacy.” Which will bring up the “Select Information to Sync”

Configure the privacy settings for your event copies

Next, configure the privacy settings of the sync connection and set the subject line tag that will be appended to event copies created by this sync connection.

info

As explained in this Microsoft support thread: “If you share your Calendar, Contacts, or Tasks folders with one or more people who have Read permissions, the Private feature will not prevent them from seeing the details of your appointments. In addition, anyone with Read access to your folders could use programmatic methods or other email applications to view the details of your private items.”

Configure the tag appended to the subject of event copies

By default, CalendarBridge appends “(copy)” to the subject of event copies. If you would like to replace “(copy)” with some other text (e.g., some text that indicates the calendar that the event came from), type that text in this textbox. If you would not like CalendarBridge to add any tag to the subject of event copies, toggle the “No Tag” switch.

Important notes about choosing a tag:

When you have all the above settings configured as desired, click “Continue to Options” to bring up the Sync Options screen.

Configure Event Color and Event Filtering

CalendarBridge Screenshot

Filtering events you do not want synced

In the “Advanced” section, you have the option of setting filters that will prevent CalendarBridge from syncing certain events. Note filtering is only available for Google and Microsoft accounts — filtering is not supported for Apple or ICS URLs.

Exclude Free Events

If you activate this setting, CalendarBridge will not sync events that are designated as “free” on the source calendar. (For example, all-day events are set as “free” by default in both Google and Outlook Calendars.)

Exclude tentative events

This setting is available when the source calendar is an Outlook calendar. If you activate it, CalendarBridge will not sync events that are set as “tentative” in your Outlook calendar. By default, Outlook marks invitations that you have received but not accepted as “tentative.”

Exclude Unaccepted Events

This setting is available when the source calendar is a Google calendar. If you activate it, CalendarBridge will not sync events resulting from invitations that you have received, but not accepted on your Google calendar.

Exclude Source events with a specific color/category

This setting allows you to designate a color (Google source calendar) /category (Outlook source calendar) that, when applied to an event on the source calendar, will result in CalendarBridge not syncing that event to the destination calendar. This enables deciding which events to sync and not to sync on a per-event basis. Please note that, for Outlook source calendar, your category name must exactly match the default name that Outlook uses (“Green category”, “Yellow category” etc.).

Only Sync Events of a Specific Color

This is the inverse of the above setting. Only the events that match the selected color/category will be synced, and all others will be ignored. This is helpful if you assign a color to work events, personal events, travel events, etc., and only want a specific subset to sync.

Enable Time Range & Day Filtering

This allows you to sync only the events that fall within specific hours and specific days of the week. Events occurring outside the selected range will not be synced.

Once the sync options are configured as desired, click “Review Sync,” to bring up the final review screen:

If you need to change something, click “Back,” otherwise click “Create” to establish the sync connection and return to your syncs overview page.

schedule

It may take up to 15 minutes for the initial sync to complete. Until the initial sync is complete, you will see a progress indicator on the sync overview page (refresh the page to update the progress indicator):

When the sync is complete the progress indicator will be replaced by “Active and Up-to-Date.” (To refresh the status, you must refresh the page)

Sync connection setup is now complete. Repeat these steps for each pair of calendars you want to sync.