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Calendars & Appointments

Setting Up Linked Calendars & Conflict Calendars

Connect Google, Office 365, or Outlook calendars to GHL Customer Care. Sync events, enable two-way write-back, and block double-bookings with conflict calendars.

6 min read1,341 words5 explained imagesUpdated Wed, 8 Jul at 4:23 AM
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On this page
  1. When to Use Connected, Linked & Conflict Calendars
  2. Prerequisites
  3. Setting up the Linked Calendar
  4. Step 1: Access the Connections Tab
  5. Step 2: Add a Calendar
  6. Step 3: Configure Your Linked Calendar
  7. Service Bookings Sync to Linked Third-Party Calendars
  8. Sync Preferences (Advanced Settings)
  9. 1. Default Sync (One Way Sync)
  10. 2. Two-Way Sync
  11. Conflict Calendars
  12. How these Calendars Work
  13. Best Practices & Considerations
  14. Common Troubleshooting
  15. Related Articles

GHL Customer Care lets you synchronize external calendars (Google, Office 365, Outlook.com) to keep your availability up to date and prevent double-bookings. Use Connected Calendars to authorize GHL Customer Care’s access, Linked Calendars to import events and show true availability, and Conflict Calendars to automatically block GHL Customer Care slots when you have other commitments.

TABLE OF CONTENTS


When to Use Connected, Linked & Conflict Calendars

  • Connected Calendars: Grant GHL Customer Care permission to read (and optionally write) events from an external calendar account.

  • Linked Calendars: Import events and availability into GHL Customer Care so your true busy times display.

  • Conflict Calendars: Mark certain connected calendars as blockers, automatically making overlapping High-Level booking slots Unavailable.


Prerequisites

  • User Role: Admin or Manager access in the sub-account.

  • External Calendar Account: Active Google Calendar, Office 365, or Outlook.com login credentials for each user.


Setting up the Linked Calendar

Step 1: Access the Connections Tab

In your GHL Customer Care sub-account sidebar, go to Settings → Calendars, then click the Connections tab at the top to go to Calendars and Connected Calendars. 

Step 1: Access the Connections Tab (image 1 of 5) What this shows In your GHL Customer Care sub-account sidebar, go to Settings → Calendars, then click the Connections tab at the top to go to Calendars and… What this shows Illustrates the "Step 1: Access the Connections Tab" section of "Setting Up Linked Calendars & Conflict Calendars". This animation appears in the "Step 1: Access the Connections Tab" section of "Setting Up Linked Calendars & Conflict Calendars". The text alongside this image reads: In your GHL Customer Care sub-account sidebar, go to Settings → Calendars, then click the Connections tab at the top to go to Calendars and Connected Calendars. Immediately after, the guide continues: Under Connected Calendars, click + Add New. Select your provider: Google, Outlook, iCloud or Calendly Calendar. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back). Once successful…. Image 1 of 5 Where to goIn your GHL Customer Care sub-account sidebar, go to Settings → Calendars, then click the Connections tab at the top to go to Calendars and Connected Calendars.
Buttons and menus referenced Settings → Calendars,ConnectionsCalendarsConnected Calendars
Next stepUnder Connected Calendars, click + Add New. Select your provider: Google, Outlook, iCloud or Calendly Calendar. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back). Once successful, you’ll see your email listed with its provider icon.

Step 2:  Add a Calendar

  1. Under Connected Calendars, click + Add New.

  2. Select your provider: Google, Outlook, iCloud or Calendly Calendar.

  3. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back).

  4. Once successful, you’ll see your email listed with its provider icon.

Step 2: Add a Calendar (image 2 of 5) What this shows Under Connected Calendars, click + Add New. What this shows Illustrates the "Step 2: Add a Calendar" section of "Setting Up Linked Calendars & Conflict Calendars". This animation appears in the "Step 2: Add a Calendar" section of "Setting Up Linked Calendars & Conflict Calendars". The text alongside this image reads: Under Connected Calendars, click + Add New. Select your provider: Google, Outlook, iCloud or Calendly Calendar. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back). Once successful, you’ll see your email listed with its provider icon. Immediately after, the guide continues: Alert: Reconnect broken integrations If you see a red banner like “Reconnect your integration” or the calendar tile is outlined in red, your OAuth token may have expired or been revoked. Click Reconnect and re-authorize GHL Customer Care to…. Image 2 of 5 What to chooseUnder Connected Calendars, click + Add New. Select your provider: Google, Outlook, iCloud or Calendly Calendar. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back). Once successful, you’ll see your email listed with its provider icon.
Buttons and menus referenced Connected Calendars+ Add NewGoogleOutlook, iCloud or Calendly Calendar.readwriteAlert: Reconnect broken integrations
Next stepAlert: Reconnect broken integrations If you see a red banner like “Reconnect your integration” or the calendar tile is outlined in red, your OAuth token may have expired or been revoked. Click Reconnect and re-authorize GHL Customer Care to restore access. If the third-party calendar was deleted at the provider, the banner can also display a Fix This option. Click Fix This to review all deleted calendar instances and use Remove Deleted Calendars to clean up broken connections. Automatic resync after reconnect or changes: When you reconnect a previously disconnected calendar, GHL Customer Care automatically pushes any unsynced upcoming appointments to your external calendar. If you connect a new calendar or switch to a different selected calendar within the same integration, GHL Customer Care automatically resyncs future appointments to the newly selected calendar.
All 4 steps in this procedure
  1. Under Connected Calendars, click + Add New.
  2. Select your provider: Google, Outlook, iCloud or Calendly Calendar.
  3. Sign in and grant GHL Customer Care permission to read events (and write, if you plan to sync bookings back).
  4. Once successful, you’ll see your email listed with its provider icon.
Alert: Reconnect broken integrations
If you see a red banner like “Reconnect your integration” or the calendar tile is outlined in red, your OAuth token may have expired or been revoked. Click Reconnect and re-authorize GHL Customer Care to restore access. If the third-party calendar was deleted at the provider, the banner can also display a Fix This option. Click Fix This to review all deleted calendar instances and use Remove Deleted Calendars to clean up broken connections. Automatic resync after reconnect or changes: When you reconnect a previously disconnected calendar, GHL Customer Care automatically pushes any unsynced upcoming appointments to your external calendar. If you connect a new calendar or switch to a different selected calendar within the same integration, GHL Customer Care automatically resyncs future appointments to the newly selected calendar.




Step 3: Configure Your Linked Calendar

  1. In the Calendar Configuration section under Linked Calendar, click Add.

  2. Choose one of your Connected Calendars to import events into GHL Customer Care.

  3. Click Save.

Step 3: Configure Your Linked Calendar (image 3 of 5) What this shows In the Calendar Configuration section under Linked Calendar, click Add. What this shows Illustrates the "Step 3: Configure Your Linked Calendar" section of "Setting Up Linked Calendars & Conflict Calendars". This animation appears in the "Step 3: Configure Your Linked Calendar" section of "Setting Up Linked Calendars & Conflict Calendars". The text alongside this image reads: In the Calendar Configuration section under Linked Calendar, click Add. Choose one of your Connected Calendars to import events into GHL Customer Care. Click Save. Immediately after, the guide continues: IMPORTANT:- 1. Writer's access is required for the user to select a calendar as a linked calendar. 2. The linked calendar is by default added to the conflict calendar. This means any event created on the third-party linked calendar will…. Image 3 of 5 What to chooseIn the Calendar Configuration section under Linked Calendar, click Add. Choose one of your Connected Calendars to import events into GHL Customer Care. Click Save.
Buttons and menus referenced Calendar ConfigurationLinked CalendarAddConnected CalendarsSaveIMPORTANT:-
Next stepIMPORTANT:- 1. Writer's access is required for the user to select a calendar as a linked calendar. 2. The linked calendar is by default added to the conflict calendar. This means any event created on the third-party linked calendar will be fetched in the system, and any event created in the system will be pushed to the third-party linked calendar. 3. You can set your Sync Preferences from the Advanced Settings.
All 3 steps in this procedure
  1. In the Calendar Configuration section under Linked Calendar, click Add.
  2. Choose one of your Connected Calendars to import events into GHL Customer Care.
  3. Click Save.
IMPORTANT:-
1. Writer's access is required for the user to select a calendar as a linked calendar. 
2. The linked calendar is by default added to the conflict calendar. This means any event created on the third-party linked calendar will be fetched in the system, and any event created in the system will be pushed to the third-party linked calendar. 
3. You can set your Sync Preferences from the Advanced Settings.

Service Bookings Sync to Linked Third-Party Calendars

Linked calendars help staff keep their assigned service bookings visible alongside the rest of their schedule. This improves day-to-day calendar visibility and makes it easier to manage appointments across platforms like Google, Outlook, and iCloud.

Service bookings can now sync to the linked third-party calendar selected in Calendar Settings > Connections.

Supported linked calendars include:

  • Google
  • Outlook
  • iCloud

Important:

bookings assigned to you sync to your selected linked calendar

if a single booking includes multiple services assigned to different staff members, each staff member sees only their own assigned booking on their own linked calendar

This keeps service scheduling more accurate across teams and avoids unnecessary visibility into bookings assigned to other users.


Sync Preferences (Advanced Settings)

1. Default Sync (One Way Sync)

  • Events created on the system will be synced to Linked Calendar (Eg, Google).
  • Events created on Linked Calendar (Eg, Google) will be synced to the system.
    1. These events are synced as blocked slots.
    2. No contact is created for guests in the Linked Calendar (Eg, Google) events.
    3. No automations / workflows are triggered.
1. Default Sync (One Way Sync) (image 4 of 5) What this shows Events created on the system will be synced to Linked Calendar (Eg, Google). What this shows Illustrates the "1. Default Sync (One Way Sync)" section of "Setting Up Linked Calendars & Conflict Calendars". This screenshot appears in the "1. Default Sync (One Way Sync)" section of "Setting Up Linked Calendars & Conflict Calendars". The text alongside this image reads: Events created on the system will be synced to Linked Calendar (Eg, Google). Events created on Linked Calendar (Eg, Google) will be synced to the system. Immediately after, the guide continues: Events created on the system will be synced to Linked Calendar (Eg, Google). Events created on Linked Calendar (Eg, Google) will be synced to the system. Image 4 of 5 What this coversEvents created on the system will be synced to Linked Calendar (Eg, Google). Events created on Linked Calendar (Eg, Google) will be synced to the system. Next stepEvents created on the system will be synced to Linked Calendar (Eg, Google). Events created on Linked Calendar (Eg, Google) will be synced to the system.
All 2 steps in this procedure
  1. Events created on the system will be synced to Linked Calendar (Eg, Google).
  2. Events created on Linked Calendar (Eg, Google) will be synced to the system.

2. Two-Way Sync

  • Events created on the system will be synced to Linked Calendar (Eg, Google).
  • Events created on Linked Calendar (Eg, Google) will be synced to the system.
    1. These events are synced as appointments.
    2. Contact is created for the guests found in the Linked Calendar (Eg, Google) events.
    3. Automation/workflows can be triggered like any other appointment created in the system.
For Example:John has created a google event from 1:00 pm to 2:00 pm called 'Doctor's Appointment with Dr. Mark' and has added Dr. Mark as a guest in his google calendar.
Default Sync (One-way Sync): Only a blocked time from 1:00 pm to 2:00 pm will be added in the system so that no one can book during that time.
Two-way Sync: An appointment is created in the system from 1:00 pm to 2:00 pm so that no one can book during that time. A new contact for Dr. Mark is created in the system. If any workflows are created, they would get triggered for Dr. Mark.

Conflict Calendars

Events from third-party calendars added as conflict calendars are synced to the system, blocking your availability for the event's duration. As the name suggests, we read all the events from the selected calendar and block off the timings when the user is not available. The availability is blocked only if the event is marked as 'BUSY' in the third-party calendar. For events marked as 'FREE', the events are fetched in the system but the availability remains open. 

Conflict Calendars (image 5 of 5) What this shows Events from third-party calendars added as conflict calendars are synced to the system, blocking your availability for the event's duration. What this shows Illustrates the "Conflict Calendars" section of "Setting Up Linked Calendars & Conflict Calendars". This animation appears in the "Conflict Calendars" section of "Setting Up Linked Calendars & Conflict Calendars". The text alongside this image reads: Events from third-party calendars added as conflict calendars are synced to the system, blocking your availability for the event's duration. As the name suggests, we read all the events from the selected calendar and block off the timings when the user is not available. The availability is blocked…. Immediately after, the guide continues: This ensures accurate availability and avoids double bookings. You can add multiple calendars to be checked to prevent double bookings. In the Conflict Calendars section, we do not create any appointments, instead we just block off the…. Image 5 of 5 What this coversEvents from third-party calendars added as conflict calendars are synced to the system, blocking your availability for the event's duration. As the name suggests, we read all the events from the selected calendar and block off the timings when the user is not available. The availability is blocked only if the event is marked as 'BUSY' in the third-party calendar. For events marked as 'FREE', the events are fetched in the system but the availability remains open. Next stepThis ensures accurate availability and avoids double bookings. You can add multiple calendars to be checked to prevent double bookings. In the Conflict Calendars section, we do not create any appointments, instead we just block off the time for any event already scheduled in your third party calendar.

This ensures accurate availability and avoids double bookings. You can add multiple calendars to be checked to prevent double bookings. In the Conflict Calendars section, we do not create any appointments, instead we just block off the time for any event already scheduled in your third party calendar.


How these Calendars Work

  1. Booking Requests

    • When a client requests an appointment, GHL Customer Care checks both your Linked and Conflict calendars. Any overlapping events render those slots Unavailable.

  2. Two-Way Sync

    • If you enable Write Back Appointments, GHL Customer Care will write new bookings into your external calendar.

    • Cancellations or reschedules in GHL Customer Care also update your external calendar.

    • Status-only updates: Marking an appointment as Showed or No Show** does not push an update to the external calendar. This prevents third-party “event updated” emails while keeping status tracking inside GHL Customer Care.

    • Reliability after changes: If your integration is reconnected, updated, or switched to a different calendar, GHL Customer Care automatically syncs upcoming appointments so your external calendar stays accurate without manual edits.

  3. Calendar View

    • In the Calendar tab, external events display as shaded blocks, High-Level bookings as colored events, and blocked slots as Unavailable marking.


Best Practices & Considerations

  • Limit Write-Back: Enable write-back on only your primary work calendar to avoid duplicate entries.

  • Block Personal Events: Link personal calendars as Conflict Calendars so family or personal commitments auto-block booking slots.

  • Align Time Zones: Ensure your external calendar’s time zone matches your GHL Customer Care profile to prevent mismatches.

  • Periodic Reauthorization: If you change your external account password or security settings, reauthorize GHL Customer Care to prevent broken integrations.


Common Troubleshooting

IssueCauseResolution
Integration shows as broken (red banner)OAuth token expired or revokedUnder Settings → Calendars → Connections, click Reconnect and re-authorize.
Events not appearing in GHL Customer CareNo Linked Calendar selected or sync disabledIn Calendar Configuration → Linked Calendar, click Edit, ensure Sync Events is on.
Slots are still bookable during external eventsConflict Calendar is not enabledUnder Conflict Calendars, click Edit, toggle Use as Conflict Calendar, then Save.
High-level appointments are not writing backWrite-Back toggle is offEdit your Linked Calendar settings to enable Write Back Appointments, then save.
Duplicate external eventsMultiple calendars have write-back enabledDisable write-back on secondary calendars or unlink extras you don’t need.

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