Documentation Index
Fetch the complete documentation index at: https://docs.sympana.com/llms.txt
Use this file to discover all available pages before exploring further.
All functions
These are the 11 functions available when you create a Vapi connection in Sympana. Click a function in the Sympana dashboard to enable or disable it.
| Function | What It Does |
|---|
| Book Appointment | Book a new appointment on the linked GHL calendar |
| Get Appointment | Retrieve details of a specific appointment by ID |
| List Appointments | Show all upcoming appointments for the caller |
| Reschedule Appointment | Move an existing appointment to a new date/time |
| Delete Appointment | Cancel an existing appointment |
| Get Slots | Check available time slots on the GHL calendar |
| Get Contact | Look up a contact in GHL by ID, phone, or email |
| Create Contact | Create a new contact in GHL |
| Update Contact Data | Update contact fields (email, name, phone, custom fields) |
| Get Opportunity | Retrieve sales pipeline/deal data for the contact |
| Timezone Resolver | Resolve timezone from phone area code or city/state |
Vapi functions work the same way as Retell functions — the same 11 tools, same parameters, same behavior. The only difference is how Sympana registers them with each provider. You don’t need to worry about this — Sympana handles it automatically.
Function parameters
Book Appointment
| Parameter | Type | Required | Auto-filled? | Description |
|---|
first_name | string | Yes | Yes | Contact’s first name |
last_name | string | Yes | Yes | Contact’s last name |
phone | string | Yes | Yes | Phone number |
title | string | Yes | No — agent asks | Purpose of the appointment |
email | string | No | Yes | Contact’s email |
preferred_date | string | No | No — agent asks | Any date format accepted |
preferred_time | string | No | No — agent asks | ”2:30 PM”, “14:30”, “2pm” |
timezone | string | No | Yes | IANA timezone or “EST”, “Pacific” |
duration_minutes | integer | No | Yes — default 30 | Length in minutes |
Get Slots (Check Availability)
| Parameter | Type | Required | Description |
|---|
date | string | No | Date to check (defaults to tomorrow) |
timezone | string | No | Defaults to America/New_York |
phone or email.
Returns: Name, phone, email, timezone, tags, source, custom fields.
| Parameter | Type | Required | Description |
|---|
field_name | string | Yes | Which field to update |
field_value | string | Yes | New value |
email, firstName, lastName, phone, companyName, address1, city, state, postalCode, country, website, timezone, plus custom fields.
| Parameter | Type | Required |
|---|
first_name | string | Yes |
last_name | string | Yes |
phone | string | Yes |
email | string | No |
Reschedule Appointment
| Parameter | Type | Required |
|---|
appointment_id | string | Yes |
new_date | string | No |
new_start_time | string | No |
Delete Appointment
| Parameter | Type | Required |
|---|
appointment_id | string | Yes |
List Appointments, Get Appointment, Get Opportunity
Use baseline contact variables automatically. Get Appointment requires appointment_id.
Timezone Resolver
| Parameter | Type | Required |
|---|
phone | string | No — auto from call |
city | string | No |
state | string | No |
How to enable or disable functions
Click a function to toggle it on (blue checkmark) or off. Click Update Connection to save.
How to view function variables
Click on any enabled function to expand it. Click prebuilt variables included (show) to see auto-configured variables.
For the full setup guide with prompt instructions, see How to Set Up Functions in Vapi.
If you need help, join the Sympana Discord server.
