Why Is a Slot Unavailable? How to Investigate

Who can use this feature?

Available on All Products or Routing & Scheduling

Available to All Users

Before You Start

If you're here because a slot isn't showing as available on a booking link, you're in the right place. This article walks you through how to find out why.

Important distinction: Chili Piper is a scheduling tool, not a calendar viewer. When you connect a calendar to Chili Piper, CP reads it to calculate when someone is bookable - it does not give other users visibility into that person's calendar events. This is the key difference between Chili Piper and Google Calendar's "Find a time" feature.

For a full breakdown of which event statuses CP treats as busy, see: Understanding Availability in Google Calendar and Microsoft Outlook.

1 - Rule Out the Obvious

Before diving into calendar data, check the meeting type settings first. Slots can be unavailable for reasons that have nothing to do with calendar blocks.

Common non-calendar causes:

Minimum scheduling notice — e.g. the link requires 24 hours advance notice, so same-day or next-day slots won't show
Working hours restrictions — the rep's availability window in CP may not cover the time being checked
Date range limits — the meeting type may only allow booking within a set number of days out
Meeting caps — a daily or weekly limit on bookings may have been reached
Queue or distribution rules — round-robin or routing logic may be filtering who is eligible

Where to check: Go to the meeting type's availability settings in Fire and review each of these fields before assuming a calendar block is the cause.

2 - Check for Calendar Blocks Using ChiliCal

If the meeting type settings look correct, the most likely cause is a busy block on the rep's connected calendar.

ChiliCal is your primary tool here. It reflects the same availability logic CP uses for booking links, so what you see in ChiliCal is what a prospect sees on the link.

How to use it:

Open ChiliCal via the Chrome Extension or the web app
Select the affected rep
Navigate to the date range in question
Slots shown as unavailable in ChiliCal confirm that CP is detecting a busy block on that rep's calendar for those times

This tells you that a block exists. It does not tell you what the block is, Chili Piper does not expose event titles or details from connected calendars, for privacy reasons.

3 - Identify What Is Causing the Block

Once you've confirmed a block exists via ChiliCal , you have a few ways to find out what's behind it:

Recommended: Option A - Check the rep's calendar directly

If you have access to the rep's Google Calendar or Outlook, open it and look at the blocked times. You'll be able to see:

Event title and type
Whether it's marked as Busy, Tentative, or Out of Office
Whether it's an all-day event
Whether it's a recurring meeting the rep declined but that still shows as Busy

This is the fastest way to identify the exact cause.

Option B: Ask the rep to check their own calendar

If you don't have access, ask the rep to look at their calendar for the affected dates and check for:

Any all-day events marked as Busy (including OOO blocks placed by a manager or shared calendar)
Tentative events (in Outlook, Tentative blocks availability by default)
Recurring meetings they may have declined but that weren't fully removed
Events they didn't create themselves — e.g. a team-wide OOO block added by someone else

Option CHover for a tooltip (some workflows only)

In certain CP workflows (such as placeholder calendars), admins can hover over an unavailable slot and see a tooltip that explains which event is causing the conflict. This is not available on standard booking links, those only show the slot as unavailable without event details.

4 - Whole Days Blocked?

If entire days are showing no availability, the cause is usually one of the following:

Cause	What to look for
All-day event marked as Busy	A single all-day event (e.g. OOO, holiday, focus block) that covers the whole day
Out of Office block	Set by the rep or by an admin/manager on a shared calendar
Team-wide calendar block	One rep placed an OOO that cascaded to other team members' calendars
Working hours not configured for that day	The rep's CP availability schedule may have that day excluded
Broken calendar connection	If CP can't read the calendar, it shows no availability at all — check that the calendar sync is active

Note on group/round-robin links: These links show availability only when all required participants are free at the same time. One rep's OOO block or busy event can eliminate availability for the whole group on that day.

5 - Verify the Calendar Connection Is Active

A broken or expired calendar connection causes CP to show no available slots, because it can't read the calendar at all.

How to check:

Go to the admin Booking Links section in Fire
If a rep's calendar connection is broken, there will be a prompt indicating a disconnection
Ask the rep to check their connected calendar status under their personal CP settings and reconnect if needed

Quick Reference: What CP Can and Cannot Show You

Question	Can CP answer it?
Is this slot available?	Yes
Is there a busy block preventing a slot?	Yes (via ChiliCal)
What event is causing the block?	Usually no - privacy reasons
What is the event title?	No
Who created the blocking event?	No
Why is a full day blocked?	Partially - CP shows no availability, but you need to check the calendar directly for the reason
Is the calendar connection active?	Yes - visible in admin settings

When to Use Google Calendar's "Find a Time" Instead

If your goal is to see another person's calendar, not just check if they're bookable, that's a Google Calendar feature, not a Chili Piper feature.

Google Calendar's "Find a time" (available when creating an event and adding guests) lets you:

Compare multiple calendars side by side
See exact busy/free blocks visually
Identify overlapping availability across a team

This requires the other person to have shared their calendar with you, or for sharing to be enabled at the organization level.

Use Chili Piper when you want to route and book a meeting. Use Google Calendar's "Find a time" when you want to inspect and compare calendars directly.