# Why Appointment Time Slots Are Missing on Your Calendar

> Appointment slots not showing in your GHL Customer Care calendar? Learn the top reasons and how to fix them with this step-by-step troubleshooting guide.

- Source: https://docs.ghlcustomercare.com/docs/calendars-and-appointments/troubleshooting-calendars/why-appointment-time-slots-are-missing-on-your-calendar
- Section: Calendars & Appointments / Troubleshooting Calendars
- Reading time: 3 min
- Images: 5, each explained below
- Modified on Wed, 11 Feb at 2:21 PM

---
If appointment time slots are missing, unavailable, or appearing unexpectedly on your calendar, several configuration factors may be responsible. This guide explains the most common causes—including updated slot capacity logic for overlapping appointments—and shows how to troubleshoot them effectively.

---

**TABLE OF CONTENTS**

-   [Overview](#overview)
-   [Calendar Configuration Checks](#calendar-configuration-checks)
-   [Confirm You Are Editing the Correct Calendar](#confirm-you-are-editing-the-correct-calendar)
-   [Verify Working Hours and Date Overrides](#verify-working-hours-and-date-overrides)
-   [Confirm Assigned Team Members](#confirm-assigned-team-members)
-   [Slot Duration, Interval, and Buffer Settings](#slot-duration-interval-and-buffer-settings)
-   [Multiple Appointments Per Slot and Capacity Limits (Updated Logic)](#multiple-appointments-per-slot-and-capacity-limits-updated-logic)[](#updated-slot-capacity-behavior)
-   [Updated Slot Capacity Behavior](#updated-slot-capacity-behavior)
-   [External Calendar Conflicts and Sync](#external-calendar-conflicts-and-sync)
-   [Timezone Alignment](#timezone-alignment)
-   [Using the Calendar Troubleshooting Tool](#using-the-calendar-troubleshooting-tool)
-   [Frequently Asked Questions](#frequently-asked-questions)
-   [Related Articles](#related-articles)

---

## **Overview**

Time slot visibility determines whether booking times appear correctly on your public calendar.

Slots may not display as expected due to:

-   Calendar configuration settings
    
-   Assigned team members
    
-   Slot duration and interval setup
    
-   Buffer times
    
-   External calendar conflicts
    
-   Timezone mismatches
    
-   Slot capacity limits (for calendars that allow multiple appointments per slot)
    

Understanding how these settings interact will help you quickly identify and resolve booking issues.

---

## **Calendar Configuration Checks**

Calendar configuration is the foundation of availability logic. Incorrect settings here are a common cause of missing time slots.

---

## **Confirm You Are Editing the Correct Calendar**

Navigate to:

**Calendars → Calendar Settings**

Locate the correct calendar and click the **Edit (pencil icon)**.

![Confirm You Are Editing the Correct Calendar (image 1 of 5)](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/155064724839/original/vsvDx6zFHuKwUMg9TQpOaxNUVtNyly5MKA.png)

**Confirm You Are Editing the Correct Calendar (image 1 of 5)**

This screenshot appears in the "Confirm You Are Editing the Correct Calendar" section of "Why Appointment Time Slots Are Missing on Your Calendar". The text alongside this image reads: Locate the correct calendar and click the Edit (pencil icon). This part of the guide covers 3 fields, listed below. Immediately after, the guide continues: Make sure you are editing the intended.
- What to click: Locate the correct calendar and click the Edit (pencil icon).
- Fields: Calendar Name, Calendar Type, Calendar Group
- Controls: Calendars → Calendar Settings, Edit (pencil icon)
- Next: Make sure you are editing the intended:

Example values (illustrative, not read from the screenshot):

- Calendar Name: Priya Raman

Full procedure:

1. Calendar Name
2. Calendar Type
3. Calendar Group

Make sure you are editing the intended:

-   Calendar Name
    
-   Calendar Type
    
-   Calendar Group
    

---

## **Verify Working Hours and Date Overrides**

Inside the calendar editor:

1.  Open the **Availability** tab.
    
2.  Confirm:
    
    -   Weekly hours are correctly configured.
        
    -   No date-specific overrides are blocking availability.
        

![Verify Working Hours and Date Overrides (image 2 of 5)](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/155064724878/original/8epapdpsaY9a7Le4cQzDQbpfind4LvIDDw.png)

**Verify Working Hours and Date Overrides (image 2 of 5)**

This screenshot appears in the "Verify Working Hours and Date Overrides" section of "Why Appointment Time Slots Are Missing on Your Calendar". The text alongside this image reads: Open the Availability tab. Confirm. For context, this section explains: If recurring meetings are enabled, date-specific hours may not apply. Immediately after, the guide continues: If recurring meetings are enabled, date-specific hours may not apply.
- Where to go: Open the Availability tab. Confirm:
- Controls: Availability
- Next: If recurring meetings are enabled, date-specific hours may not apply.

Full procedure:

1. Open the Availability tab.
2. Confirm:

If recurring meetings are enabled, date-specific hours may not apply.

---

## **Confirm Assigned Team Members**

Availability depends on assigned users.

Under **Service Details**, confirm at least one team member is selected.

![Confirm Assigned Team Members (image 3 of 5)](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/155064724884/original/JanUualC7QE1EEpOhYCIjgvpGRiJ1dzGBw.png)

**Confirm Assigned Team Members (image 3 of 5)**

This screenshot appears in the "Confirm Assigned Team Members" section of "Why Appointment Time Slots Are Missing on Your Calendar". The text alongside this image reads: Under Service Details, confirm at least one team member is selected. Immediately after, the guide continues: If no team member is assigned, slots will not appear.
- How to confirm: Under Service Details, confirm at least one team member is selected.
- Controls: Service Details
- Next: If no team member is assigned, slots will not appear.

If no team member is assigned, slots will not appear.

---

## **Slot Duration, Interval, and Buffer Settings**

Slot configuration affects how booking times are generated.

Under the **Availability** tab, review:

-   **Service interval**
    
-   **Service duration**
    
-   **Post buffer time**
    

![Slot Duration, Interval, and Buffer Settings (image 4 of 5)](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/155064724888/original/Ii8Qqe9uGVDGHcTfLecctoHHwTWURWiX4Q.png)

**Slot Duration, Interval, and Buffer Settings (image 4 of 5)**

This screenshot appears in the "Slot Duration, Interval, and Buffer Settings" section of "Why Appointment Time Slots Are Missing on Your Calendar". The text alongside this image reads: Service interval Service duration Post buffer time. This part of the guide covers 3 fields, listed below. Immediately after, the guide continues: Improper interval and duration combinations can create gaps or prevent expected time slots from appearing.
- What this covers: Service interval Service duration Post buffer time
- Fields: Service interval, Service duration, Post buffer time
- Controls: Availability, Service interval, Service duration, Post buffer time
- Next: Improper interval and duration combinations can create gaps or prevent expected time slots from appearing.

Full procedure:

1. Service interval
2. Service duration
3. Post buffer time

Improper interval and duration combinations can create gaps or prevent expected time slots from appearing.

---

## **Multiple Appointments Per Slot and Capacity Limits (Updated Logic)**

If your calendar allows multiple appointments per slot—such as Event or Class calendars—slot visibility depends on capacity.

### **Updated Slot Capacity Behavior**

-   Each confirmed appointment reduces slot capacity by 1.
    
-   If an appointment overlaps multiple time slots, each affected slot’s capacity is reduced by 1.
    
-   A slot is blocked only when its defined capacity limit is fully reached.
    
-   Overlapping appointments no longer fully block all affected slots prematurely.
    

If a slot is not appearing, verify whether the maximum appointment limit for that slot has already been reached.

---

## **External Calendar Conflicts and Sync**

Connected Google or Outlook calendars may block availability.

If a synced event is marked **Busy**, it will prevent booking during that time range.

Review your connected calendar events and confirm their availability status.

External conflicts override internal availability settings.

---

## **Timezone Alignment**

Timezone mismatches can cause slots to appear at unexpected times or not appear at all.

Verify:

-   Your user profile timezone
    
-   The calendar viewing timezone
    
-   Client-facing timezone display
    

A time that appears available for one user may not align with another user’s timezone.

---

## **Using the Calendar Troubleshooting Tool**

The built-in Troubleshooting Tool provides a detailed breakdown of slot logic.

To access it:

1.  Go to **Calendar Settings**.
    
2.  Locate the calendar.
    
3.  Click the **Troubleshoot (wrench icon)**.
    

![Using the Calendar Troubleshooting Tool (image 5 of 5)](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/155064724897/original/vXCn1hF3xgHhDvaPZN2u5b5j-FTQMXRKgA.png)

**Using the Calendar Troubleshooting Tool (image 5 of 5)**

This screenshot appears in the "Using the Calendar Troubleshooting Tool" section of "Why Appointment Time Slots Are Missing on Your Calendar". The text alongside this image reads: Go to Calendar Settings. Locate the calendar. Click the Troubleshoot (wrench icon). This part of the guide covers 5 fields, listed below. Immediately after, the guide continues: Capacity rules Buffer logic Timezone checks User assignment rules External conflicts.
- Where to go: Go to Calendar Settings. Locate the calendar. Click the Troubleshoot (wrench icon).
- Fields: Capacity rules, Buffer logic, Timezone checks, User assignment rules, External conflicts
- Controls: Calendar Settings, Troubleshoot (wrench icon)
- Next: Capacity rules Buffer logic Timezone checks User assignment rules External conflicts

Example values (illustrative, not read from the screenshot):

- Timezone checks: America/Chicago

Full procedure:

1. Go to Calendar Settings.
2. Locate the calendar.
3. Click the Troubleshoot (wrench icon).

The tool shows:

-   Capacity rules
    
-   Buffer logic
    
-   Timezone checks
    
-   User assignment rules
    
-   External conflicts
    

Use it to determine exactly why a specific slot is blocked.

---

## **Frequently Asked Questions**

**Q: Why does a team member show available but isn’t getting booked?**

Round Robin logic, availability priority, or user assignment configuration may prevent bookings.

**Q: Why are my booking slots not aligning with my working hours?**

Check slot interval, duration, buffer settings, and external conflicts.

**Q: Do overlapping appointments block entire slots?**

No. Overlapping appointments reduce slot capacity by 1. A slot is blocked only when its capacity limit is reached.

**Q: Why do slots show differently across devices or browsers?**

Browser cache or timezone mismatches may cause inconsistencies.

**Q: Can clients choose a preferred team member?**

Yes. Enable staff selection in calendar settings for Round Robin calendars.

**Q: What does the Troubleshooting Tool show?**

It lists all rules affecting slot visibility, including capacity limits, buffer times, timezone logic, and user assignment.

---

## **Related Articles**

-   [Show Seats Per Slot for Class Booking](https://docs.ghlcustomercare.com/docs/calendars-and-appointments/creating-calendars/show-seats-per-slot-for-class-booking-on-the-booking-widget)
    
-   [Round Robin Calendars: Setup Guide](https://docs.ghlcustomercare.com/docs/calendars-and-appointments/round-robin-calendars/round-robin-calendars-setup-distribution-availability-explained)
    
-   [Adjusting Availability Settings](https://docs.ghlcustomercare.com/docs/calendars-and-appointments/calendar-availability-settings/adjusting-availability-settings-for-individual-calendars)

---

Documentation for GHL Customer Care. Support: support@ghlcustomercare.com